• WordNet 3.6
    • adj external happening or arising or located outside or beyond some limits or especially surface "the external auditory canal","external pressures"
    • adj external purely outward or superficial "external composure","an external concern for reputation"- A.R.Gurney,Jr."
    • adj external from or between other countries "external commerce","international trade","developing nations need outside help"
    • adj external coming from the outside "extraneous light in the camera spoiled the photograph","relying upon an extraneous income","disdaining outside pressure groups"
    • n external outward features "he enjoyed the solemn externals of religion"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: The external tank on space shuttles is not painted. It is the only part of the shuttle that is lost after launch, so it is not necessary to worry about metal corrosion.
    • External (Anat) Away from the mesial plane of the body; lateral.
    • External Foreign; relating to or connected with foreign nations; as, external trade or commerce; the external relations of a state or kingdom.
    • External Not intrinsic nor essential; accidental; accompanying; superficial. "The external circumstances are greatly different."
    • External Outside of or separate from ourselves; Metaph separate from the perceiving mind.
    • External Outward; exterior; relating to the outside, as of a body; being without; acting from without; -- opposed to internal; as, the external form or surface of a body. "Of all external things, . . . She [Fancy] forms imaginations, aery shapes."
    • External Outwardly perceptible; visible; physical or corporeal, as distinguished from mental or moral. "Her virtues graced with external gifts."
    • n External Something external or without; outward part; that which makes a show, rather than that which is intrinsic; visible form; -- usually in the plural. "Adam was then no less glorious in his externals""God in externals could not place content."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Chameleons change their color by dispersing the concentration of pigment in their skin. This is controlled by the autonomic nervous system. Color changes are determined by external factors such as light and temperature as well as emotions. They do not change color to match their background.
    • external Situated on or pertaining to the outside; located in a part of space not occupied by or within the thing referred to.
    • external Outer or outermost; specifically, in zoology, on the side furthest away from the body, from the median line, or from the center of a radially symmetrical form: as, the external side of an insect's leg; the external edge of the carapace; external border, etc.
    • external Being outside in any figurative sense; coming from or pertaining to the outside; not internal: as, external evidence; specifically, in metaphysics, forming part of or pertaining to the world of things or phenomena in space, considered as outside of the perceiving mind.
    • external Belonging to a thing in its relations with other things; extrinsic: as, external constraint.
    • external Outward; exterior; visible from the outside; hence, capable of being perceived; apparent.
    • external Pertaining to the surface merely; superficial: as, external culture.
    • external Foreign; relating to or connected with foreign nations: as, external trade or commerce; the external relations of a state or kingdom.
    • n external An outward part; something pertaining to the exterior.
    • n external An outward rite or ceremony; a visible form or symbol: as, the externals of religion.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Manta Rays have no external organs for urination, therefore they release the urine from their pores
    • adj External eks-tėr′nal exterior: lying outside: outward: belonging to the world of outward things: that may be seen: not innate or intrinsic: accidental: foreign
    • n External exterior:
    • n External a day-scholar
    • n External (pl.) the outward parts: outward or non-essential forms and ceremonies
    • ***


  • Ralph Waldo Emerson
    “Nothing external to you has any power over you.”
  • Samuel Johnson
    “He that would be superior to external influences must first become superior to his own passions.”
  • Plotinus
    “God is not external to anyone, but is present with all things, though they are ignorant that he is so.”
  • Dr. Robert Anthony
    Dr. Robert Anthony
    “Hope is the expectation that something outside of ourselves, something or someone external, is going to come to our rescue and we will live happily ever after.”
  • Samuel Johnson
    “Knowledge always demands increase; it is like fire, which must first be kindled by some external agent, but will afterwards always propagate itself.”
  • James A. Froude
    “Our human laws are more or less imperfect copies of the external laws as we see them.”


Webster's Revised Unabridged Dictionary
L. externus, fr. exter, exterus, on the outside, outward. See Exterior


In literature:

Persistent thoughts will naturally produce a greater external effect than casual ones not centred upon any particular object.
"The Hidden Power" by Thomas Troward
He holds that our knowledge of an external world is derived from a source which Reid overlooked.
"The English Utilitarians, Volume II (of 3)" by Leslie Stephen
The epidermis is the external covering.
"Essentials of Diseases of the Skin" by Henry Weightman Stelwagon
Great frequenters of churches, their piety consists in the strictest conformity to all the externals of religion.
"Sketches of the Fair Sex, in All Parts of the World" by Anonymous
Radical as our own theory may appear, finality is external or it is nothing at all.
"Creative Evolution" by Henri Bergson
Here again we must say that the Goddess was in the heart of Telemachus uttering her spirit, yet she was external to him also.
"Homer's Odyssey" by Denton J. Snider
Secondly, there are external or objective causes which are variations in experience.
"Essay on the Creative Imagination" by Th. Ribot
The currents are reversed; the external current now descends, and the internal one rises.
"Conversations on Chemistry, V. 1-2" by Jane Marcet
In his contact with the external world the artist identifies himself with his object.
"The Gate of Appreciation" by Carleton Noyes
M. M. Evacuations, abstinence, oil externally on the nose, warm diluent fluids, warm shoes, warm night-cap.
"Zoonomia, Vol. II" by Erasmus Darwin
The external history of religion a history of social growth, 1014-1016.
"Introduction to the History of Religions" by Crawford Howell Toy
If the drum perforates, a discharge will usually appear from the external ear.
"The Home Medical Library, Volume II (of VI)" by Various
Habit lays aside its indifference to an external action through reflection on the advantage or disadvantage of the same.
"Pedagogics as a System" by Karl Rosenkranz
Externally, Gropphusen and his wife were exceedingly well matched.
"'Jena' or 'Sedan'?" by Franz Beyerlein
For his strength of soul is grounded not in the external world but in his own ideal.
"The Philosophy of Spinoza" by Baruch de Spinoza
Typically, the stimulus is an external force or motion, such as light or sound, striking on a sense organ.
"Psychology" by Robert S. Woodworth
The reason that it does not manifest itself is due to the overwrapping of external objects and false thoughts.
"The Zen Experience" by Thomas Hoover
The first had been a period of domestic indifference and external agitation.
"A Short History of English Liberalism" by Walter Lyon Blease
When destiny refused them the externals of greatness, they created greatness in their own souls.
"Romain Rolland" by Stefan Zweig
Their external openings are ventral, and on the same level as the ciliated funnel-shaped nephrostomes.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10" by Various

In poetry:

There's wet snow on your lashes
And in your eyes, distress,
And your external image
Is all, all of apiece.
"Meeting" by Boris Pasternak
Q. What is the visible, external part
Of that blest feast, or Sacrament divine,
That seals the promis'd grace? tell me by heart —
Tell me, I say, what is its outward sign?
"The Lord's Prayer" by Rees Prichard
External and innate dimensions hold
The living forms, but not the force of life;
For that interior and holy tree
That in the heart of hearts outlives the world
Spreads earthly shade into eternity.
"Seed" by Kathleen Raine
What fields are as fragrant as your hands?
You feel how external fragrance stands
upon your stronger resistance.
Stars stand in images above.
Give me your mouth to soften, love;
ah, your hair is all in idleness.
"What Fields Are As Fragrant As Your Hands?" by Rainer Maria Rilke
"And that one is I; and I am projected from thee,
One that out of thy brain and heart thou causest to be -
Extern to thee nothing. Grieve not, nor thyself becall,
Woo where thou wilt; and rejoice thou canst love at all!
"Rome: The Vatican-Sala Delle Muse." by Thomas Hardy
"Pure art is here, that has no reference
To anything external does not tie
Itself to apron-strings of moral sense,
Or flatter bourgeois minds with mimicry
Of actual objects, or give weak assent
To fussy vanity or sentiment.
"The Idol" by George Rostrevor Hamilton

In news:

Biotronik Introduces New External Pacemaker.
Recent work shows that the local structure of a graph can be leveraged to substantially improve the efficiency of external-memory graph search.
The threat of terrorism, both internal and external, has tremendously changed how countries around the world are implementing physical and logical security.
Approximately three quarters of all flowering plants rely upon external assistance to pollinate their flowers.
Australia is the land of weird mammals like kangaroos and koalas that nourish their young in external pouches after a brief gestation.
Researchers at Northwestern University found that our subconcious mind may know when a deck of cards is stacked against us despite having no external clues.
The new 32-foot daysailer from CW Hood is equipped with a Mastervolt PODMaster external electric propulsion system.
A conventional conveyor system uses an externally mounted electric or hydraulic motor to drive the conveyor's head pulley .
MSD external fuel pump (new, eBay).
Revision of A354 - 07a Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners.
That early external thermal control system, or EETCS, was shut down, and its two radiators retracted, when the P6 segment was moved to the port side of the integrated power truss and tied into the station's main power system.
Non-absorbable sutures are used to permanently close internal and external wounds.
Tinnitus is the sensation of noise or ringing in the ear when an external sound is not present.
Tinnitus is the term for noises which are heard "in the ears" or "in the head": buzzing, ringing, whistling, hissing, pulsing and other sounds which do not come from an external source.
Today, Western Digital introduced their new My Book VelociRaptor Duo external drive as well as new My Passport for Mac drives with USB 3.0 ports to support Apple's updated MacBook Pros and MacBook Air laptops.

In science:

Now, for the external+other windings and external+other windings+backtrackings frontiers scalings in figure 15 b) and figure 15 c) respectively, linear fits with slopes slightly different from 4/3 might be expected.
Numerical studies of planar closed random walks
Hausdorff dimension of both its external (geometric) frontier and its external+fjords (oriented) frontier (which does incursion inside the walk around the fjords) is, as for Brownian curves, dH = 4/3.
Numerical studies of planar closed random walks
The consistency of the theory requires a smoothing in the ultraviolet of the correlation functions involving external SM gauge fields or, more generally, external vector or axial sources of SU (2)L × SU (2)R , with respect to the potential bad behaviour inferred from the lowest-order chiral Lagrangians.
Heavy Vectors in Higgs-less models
Furthermore, the equality of gravitational and inertial masses implies that different neutral massive test bodies will have the same free fall acceleration in an external gravitational field, and therefore in freely falling inertial frames the external gravitational field appears only in the form of a tidal interaction.
Experimental Tests of General Relativity
The associated SDCI correlation energy of about –4.00 eV is partitioned into contributions of excited internal, singly external, and doubly external configurations.
Correlation-induced corrections to the band structure of boron nitride: a wave-function-based approach
We analyzed the different contributions of these excited internal, singly external, and doubly external configurations to the total SDCI correlation energy.
Correlation-induced corrections to the band structure of boron nitride: a wave-function-based approach
Contrary to the doubly external configurations, the excited internal and the singly external configurations in which the occupation of the hole orbital is altered account for effects beyond the quasiparticle picture and frozen local hole approximation.
Correlation-induced corrections to the band structure of boron nitride: a wave-function-based approach
Such a SDCI wave function incorporates correlation contributions of all relevant internal, excited singly external, and doubly external configurations.
Correlation-induced corrections to the band structure of boron nitride: a wave-function-based approach
In this way, when considering the time-averaged behavior of a Bose system, sub ject to the action of an external alternating potential, we come to the picture that is similar to the description of a Bose system in an external spatially random potential.
Bose systems in spatially random or time-varying potentials
Due to the large stellar density in the star cluster core, the interaction of the external shock can take place with a denser external medium than that of the IGM.
Short Gamma Ray Bursts and their Afterglow Signatures in Dense Stellar Systems
Coupling between internal and external waves in this formalism arises due to noncommutativity of the internal and external operators.
Recent developments in the theory of multimode random lasers
We consider a Bose condensate of N interacting particles when the external trap — described by an external potential At — is time varying, it can for example be removed.
A simple derivation of mean field limits for quantum systems
Note that the presence of an external matrix creates as many poles as the number of distinct eigenvalues of this external matrix Mm+1 = Λ15 .
Chain of matrices, loop equations and topological recursion
The cases of matrix models without external field correspond to a totally degenerate external matrix Λ = c Id with only 1-eigenvalue.
Chain of matrices, loop equations and topological recursion
Primitive amplitudes are defined as a colour-stripped gauge-invariant set of Feynman diagrams with a fixed cyclic ordering of the external partons and a definite routing of the external fermions lines through the diagram .
A simple formula for the infrared singular part of the integrand of one-loop QCD amplitudes