• WordNet 3.6
    • adj rudimentary being in the earliest stages of development "rudimentary plans"
    • adj rudimentary not fully developed in mature animals "rudimentary wings"
    • adj rudimentary being or involving basic facts or principles "the fundamental laws of the universe","a fundamental incomatibility between them","these rudimentary truths","underlying principles"
    • ***
Webster's Revised Unabridged Dictionary
    • Rudimentary Of or pertaining to rudiments; consisting in first principles; elementary; initial; as, rudimental essays.
    • Rudimentary (Biol) Very imperfectly developed; in an early stage of development; embryonic.
    • ***
Century Dictionary and Cyclopedia
    • rudimentary Pertaining to rudiments or first principles; consisting in or dealing with first principles; elementary; initial: as, rudimentary teachings; rudimentary laws.
    • rudimentary Of the nature of a rudiment; elementary; undeveloped.
    • rudimentary Specifically, in biology: Pertaining to or of the nature of a rudiment; rudimental; beginning to be formed; elementary; embryonic.
    • rudimentary Vestigial; abortive; aborted or arrested in development; having no functional activity.
    • rudimentary Synonyms Rudimentary. Vestigial, Abortive. These three words, in their biological application, are commonly used interchangeably, and may mean exactly the same thing. But there is a clear and proper distinction in most cases, since that which is rudimentary in one organism may be fully developed in another organism, and that which is rudimentary in a given organism may or may not proceed to develop in that organism. So that which is developed in one organism but remains rudimentary in another is vestigial for the latter—that is. it affords a mere trace or hint of the former; and that which might have developed but did not develop in the same organism is abortive. Thus, all embryonic parts and organs are properly rudimentary; all functionless organs are vestigial which in another case have become functional; those which are normally functional but fail to become so in a given case are abortive. Rudimentary is the most general and comprehensive term for that which is rude, raw, crude, unformed, in an absolute sense; vestigial is a relative term, implying comparison with something else, of which that which is vestigial is a mere trace; abortive is likewise a relative term, but one implying arrest or failure of development in the thing itself, without reference to any other thing. Few if any organs can be described with equal accuracy by all three terms, though the distinctions are often ignored. Vestigial is a more technical term than either of the other two, implying a broad view of the thing described, derived from comparative anatomy and physiology, according to the theory of evolution. Abortive is specially applicable to pathological and teratological cases. A harelip or cleft palate is abortive, but neither vestigial nor rudimentary. The thymus of the adult is vestigial, but neither abortive nor rudimentary. The brain-bladders of the embryo are rudimentary, but neither vestigial nor abortive. Most of the functionless and apparently useless organs of adults of the higher animals are most properly to be designated as vestigial.
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Chambers's Twentieth Century Dictionary
    • adjs Rudimentary pertaining to, consisting in, or containing rudiments or first principles: initial: elementary: undeveloped:
    • adjs Rudimentary (biol.) beginning to be formed: arrested in development
    • ***


Webster's Revised Unabridged Dictionary
Cf. F. rudimentaire,


In literature:

This was the doctrine of final causes as then commonly held; in the face of rudimentary organs it was absurd.
"Evolution, Old & New" by Samuel Butler
At the base of shoots occur abortive leaves which are really rudimentary sheaths.
"A Handbook of Some South Indian Grasses" by Rai Bahadur K. Ranga Achariyar
The body of the insect is rounded, with the two hind pair of feet rudimentary and bearing long hairs.
"Our Common Insects" by Alpheus Spring Packard
The prostate is to the uterus absolutely what a rudimentary organ is to its fully developed analogue.
"Surgical Anatomy" by Joseph Maclise
He had only a rudimentary education.
"The Journal of Negro History, Volume 7, 1922" by Various
Let us begin with the rudimentary experiences.
"Fragments of science, V. 1-2" by John Tyndall
As I said, you cannot love and fear the same person, unless the love is of a very rudimentary and imperfect character.
"Expositions of Holy Scripture" by Alexander Maclaren
The feet have no rudimentary hoofs like the deer, yet this want in no way interferes with its speed.
"The Western World" by W.H.G. Kingston
A rudimentary knowledge of electricity would have made such a mistake impossible.
"The Better Germany in War Time" by Harold Picton
For want of anything but the most rudimentary system of signalling, admirals had little control of a fight once it was begun.
"Famous Sea Fights" by John Richard Hale
As a rudimentary phase of thought it is both indispensable and inadequate.
"The Approach to Philosophy" by Ralph Barton Perry
Grave courtesies, ceremonious in conception, if rather rudimentary in execution, were exchanged between us and the authorities of Johanna.
"From Sail to Steam, Recollections of Naval Life" by Captain A. T. Mahan
In the lowest beings they are both rudimentary.
"The World's Greatest Books - Volume 15 - Science" by Various
But even without advancing beyond this rudimentary stage, I saw a very serious result produced.
"Mystic London:" by Charles Maurice Davies
Very rudimentary ones, to be sure, but quite adequate to establish their intelligence.
"A Matter of Honor" by Ann Wilson
They are now set beside each other in your Rudimentary Series.
"The Crown of Wild Olive" by John Ruskin
She had only a rudimentary education, and even now speaks broken English.
"An Anarchist Woman" by Hutchins Hapgood
The general farm is a storehouse of useful information in rudimentary form.
"The New Education" by Scott Nearing
The rudimentary and most general feelings are pleasure and pain.
"The Gate of Appreciation" by Carleton Noyes
This tendency, of which the demand for chickens is a rudimentary manifestation, is the basis of all appreciation.
"The Enjoyment of Art" by Carleton Noyes

In news:

Which is Europe's hottest theatrical market, growing in 2006 at a 30% annual clip -- has replaced its rudimentary voiceovers with well-synched dubs .
Password resets, frequently asked questions, and rudimentary questions lead to lost hours of productivity and significant losses for an organization, as well as user frustration.
Few of us could handle a rudimentary conversation.
Using other new materials, some are trying to manufacture rudimentary Harry Potter-like cloaks that make objects inside of them literally invisible under the right conditions — the pinnacle of stealthy technology.
Czechoslovakian musician Iva Bittova has stitched together a musical voice to call her own, using rudimentary elements in inventive combinations.
Anagama, in Japanese, means "cave kiln ," and that's how this most rudimentary and transformationally elegant of wood-fired kilns most likely began.
As concerns rise about the state of America's cities and the bond markets where they raise money, federal regulators on Tuesday called for broad reforms, while noting that some of the most rudimentary changes would require an act of Congress.
The cells activate and send information to the brain, which compiles a rudimentary image from the input.
Scientist-comedian Charles Fleischer's rudimentary complexities.
A rudimentary traffic stop recently led police to the apparent headquarters of a counterfeit DVD operation in a Lawrenceville home.
When I struggle with just a couple of chords and you see these guys on-stage, doing what they're doing, I'd say that my skill level is rudimentary to remedial at best, but it's only heightened my appreciation of what the heroes can do.
Even as a pre-teen, the curly-haired youth with the dry sense of humor was creating rudimentary crosswords filled with puns and wordplay that stumped adults.
In 2001, we had the ability to enable IPv6 in a very rudimentary way on our IP backbone.
With the commencement of the 2012-13 school year a rudimentary form of Professional Learning Communities will be implemented in all schools within the district.
In the meantime, the administration should continue to fund further development of the rudimentary missile defenses developed by the Clinton and Bush administrations in anticipation of the North Korean threat.

In science:

With this rudimentary method, it is important to construct a rather poor laser frequency lock; a good one would reduce the linewidth of the laser.
Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation
As a way out, the figures do indicate the quality in a rudimentary way: data for which the colour code is free of red tags are shown as green symbols, otherwise they are depicted in red.
Review of lattice results concerning low energy particle physics
Note that, in this respect, the figures give a somewhat distorted picture: they include all of the data listed in the tables and, moreover, indicate their quality only in a very rudimentary way.
Review of lattice results concerning low energy particle physics
A relation R ⊆ V n is called rudimentary if there is a rudimentary function f : V n → V such that R(xi ) ⇔ f (xi ) 6=
Constructing new higher-gap morasses
Every relation that is Σ0 over the considered structure is rudimentary.
Constructing new higher-gap morasses
The claim follows from the facts (i)-(vi): (i) R rudimentary ⇔ χR rudimentary. ⇐ is clear.
Constructing new higher-gap morasses
Since χ¬R = 1 − χR . (iii) x ∈ y and x = y are rudimentary.
Constructing new higher-gap morasses
If W is rudimentary closed and H ≺1 W, then H and the collapse of H are also rudimentary closed.
Constructing new higher-gap morasses
By lemma 2, there is a rudimentary function f for every Σ0 formula ψ such that ψ(x⋆ ) ⇔ f (x⋆ ) 6=
Constructing new higher-gap morasses
If W is transitive and rudimentary closed, then |=Σ0 W (x, y ) is Σ1 -definable over W.
Constructing new higher-gap morasses
Thus there is a rudimentary function f such that x ∈ A ⇔ f (x, pi ) 6=
Constructing new higher-gap morasses
Then h(f (x, pi ), x) = S{g (z , x) | z ∈ f (x, pi )} is rudimentary, h(f (x, pi ), x) =
Constructing new higher-gap morasses
Then there is a rudimentary function f and some a ∈ W such that A = f (a, W ).
Constructing new higher-gap morasses
We say that Lκ [X ] is amenable if Iν is rudimentary closed for all ν ∈ SX .
Constructing new higher-gap morasses
The rudimentary closed hJ X ν , X ↾ ν, Ai have a canonical Σ1 -Skolem function h.
Constructing new higher-gap morasses