• WordNet 3.6
    • n unison (music) two or more sounds or tones at the same pitch or in octaves "singing in unison"
    • n unison occurring together or simultaneously "the two spoke in unison"
    • n unison corresponding exactly "marching in unison"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Orcas (killer whales), when traveling in groups, breathe in unison
    • Unison A single, unvaried.
    • Unison Harmony; agreement; concord; union.
    • Unison (Mus) Identity in pitch; coincidence of sounds proceeding from an equality in the number of vibrations made in a given time by two or more sonorous bodies. Parts played or sung in octaves are also said to be in unison, or in octaves.
    • Unison (Mus) Sounded alike in pitch; unisonant; unisonous; as, unison passages, in which two or more parts unite in coincident sound.
    • Unison Sounding alone. "sounds] intermixed with voice,
      Choral or unison ."
    • ***
Century Dictionary and Cyclopedia
    • unison Sounding alone; unisonous.
    • unison In music, sounded simultaneously; specifically, noting two or more voice-parts that are coincident in pitch, or a passage or effect thus produced.
    • n unison In music: The interval, melodic or harmonic, between any tone and a tone of exactly the same pitch; a perfect prime, acoustically represented by the ratio 1:1. The term is also used as a synonym of prime (as, an augmented unison), though this is objectionable.
    • n unison The interval of the octave, especially when occurring between male and female voices, or between higher and lower instruments of the same class.
    • n unison The state of sounding at the same pitch—that is, of being at the interval of a unison.
    • n unison A single unvaried tone; a monotone. Same as unison string.
    • n unison Accordance; agreement; harmony; concord.
    • ***
Chambers's Twentieth Century Dictionary
    • n Unison ū′ni-son oneness or agreement of sound: concord: harmony—adj. U′nisōnal
    • ***


Webster's Revised Unabridged Dictionary
LL. unisonus, having the same sound; L. unus, one + sonus, a sound: cf. F. unisson, It. unisono,. See One, and Sound a noise
Chambers's Twentieth Century Dictionary
L. unus, one, sonus a sound, sonāre, to sound.


In literature:

Sooner or later they must put themselves in unison.
"Diderot and the Encyclopaedists (Vol 1 of 2)" by John Morley
I may, as a Christian, lament that their views of duty are not more in unison with my own.
"The Underground Railroad" by William Still
Dee says that he was brought into unison with Kelly by the mediation of the angel Uriel.
"Traditions of Lancashire, Volume 1 (of 2)" by John Roby
The number of unisons, throwing into relief the two minor chords on C and F, should be especially noted.
"Old Scores and New Readings" by John F. Runciman
Pleading is not in unison.
"Matisse Picasso and Gertrude Stein" by Gertrude Stein
They sighed in unison.
"The Honorable Miss" by L. T. Meade
And if this is the case, then, most assuredly, the public interest will be in unison with morality.
"Essays on Political Economy" by Frederic Bastiat
Mrs. Portheris smiled in unison somewhat foolishly, and we saw that slumber was overtaking her.
"A Voyage of Consolation" by Sara Jeannette Duncan
I feel quite proud, sir, that my sentiments are in unison with yours.
"The Black Baronet; or, The Chronicles Of Ballytrain The Works of William Carleton, Volume One" by William Carleton
Sometimes two of these scoops were supported side by side upon a single frame, and were worked in unison by two persons.
"In Indian Mexico (1908)" by Frederick Starr
What they buy they buy in unison, and every bill of sale they give bears both their names.
"Winter Evening Tales" by Amelia Edith Huddleston Barr
Little children should rarely sing anything but unison songs.
"Music As A Language" by Ethel Home
Two voices are rarely heard together, and then only in unison.
"The Opera" by R.A. Streatfeild
The player drank each perfect note, till his pulses beat in unison with the rhythm.
"Idolatry" by Julian Hawthorne
I would, however, have the laws tuned in unison with the manners.
"The Works of the Right Honourable Edmund Burke, Vol. VII. (of 12)" by Edmund Burke
This contact should be absolute and positive, for if it is not, the receiver will not work in unison.
"Scientific American Supplement, No. 620, November 19,1887" by Various
They each held the saw by both hands, and worked in unison.
"Salem Witchcraft, Volumes I and II" by Charles Upham
Their songs are all very simple, and are chiefly sung in unison or octaves.
"The Mafulu" by Robert W. Williamson
The spirit of missions is in unison with every feeling of the new-born soul.
"A Practical Directory for Young Christian Females" by Harvey Newcomb
It was easy to perceive, however, that there was no unison in this patriotic fury.
"History of the Expedition to Russia" by Count Philip de Segur

In poetry:

For, loyal to their old-world chords,
She felt her heart in unison
With all their rich but simple words,
That took new music from her own.
"Dead Flowers" by Alexander Anderson
We watched the stars, those worlds of love,
That swim yon azure seas above--
We heard each other's heart-pulse beat,
In unison divinely sweet.
"You Told Me That You Loved Me" by James Avis Bartley
Now, ere we part,
Let's feel your heart
In unison beat, love, with mine;
Your head at rest,
Sweet on my breast,
While my arms, dear, about thee I twine.
"Kiss Me Again" by Samuel Alfred Beadle
Forests blaze red beneath the frosty sky,
The wrath of Heaven's armies soars to the clouds.
Mist veils Longgang, its thousands peaks blurred.
All cry out in unison:
Our van has taken Zhang Huizan!
"Against the First" by Mao Zedong
I know not. After all, what do I know?
Save only this -- and that is mystery --
Like the sea, my spirit hath its ebb and flow
In unison, and the tides of the sea
Ever reflect the ceaseless tides of thoughts in me.
"Sea Reverie" by Abram Joseph Ryan
Fife, fife and drum, and the sad wild music thrilling, —
Sad with tears that fall for heroes, wild with courage all afire,
Still the marching feet of men, in their unison triumphant,
Tread their way along the ages to the tune of your desire!
"Fife And Drum" by Cicely Fox Smith

In news:

TransDigm Buys APC From GE's Unison Industries.
"You are not serving our best interests," they chanted in unison.
Originally 12 in number, the group danced in unison, changing moves when their leader, Karen Smith, blew a whistle.
ATLANTA–Calphalon's new Unison line of cookware includes two nonstick coatings—called Sear and Slide—suited to each piece's cooking function.
Strings were strumming in unison tonight as a Christmas tradition hit TAMIU.
Six girls screaming her name in unison on the volleyball court.
They let out in unison.
Like Father, Like Daughter – Dad and Baby Snore in Unison.
Unison Paradigm And SmartLink From ETC.
Unison 's future riding high on demand for airplane parts.
Unison Behavioral Health Group encourages local drivers to avoid getting behind the wheel "buzzed" as the holiday season concludes.
Surprising choice of Ken Starr for top Baylor spot offers promise of collaboration, unison of voices.
Players shouted in unison, and the locker room walls rattled.
These features work in unison, reducing impact forces by as much as 70 percent over traditional front wing masts , according to the manufacturer.
Its unique one-piece design will keep the down pressure even on both press wheels as they move in unison.

In science:

Those that are more physically motivated (gravitational weak lensing searches; X-ray searches) appear to be an optimal way to detecting them (especially in unison), but yet, they remain a time-intensive method owing to the required amount of observing time to get down to sufficient limiting magnitudes and fluxes.
Pulling out Threads from the Cosmic Tapestry: Defining Filaments of Galaxies
This comes from different physical effects (in the simplest case, the long-range demagnetization field and the extremely strong effective exchange coupling that tries to make closely spaced magnetic degrees of freedom align and move in unison).
Continuum multi-physics modeling with scripting languages: the Nsim simulation compiler prototype for classical field theory
The role of the latter can be regarded as providing a refinement of the execution semantics of the underlying programming language (most often, C) by defining a kind of ‘must happen in unison across all processes participating in the computation’ generalized execution flow concept.
Continuum multi-physics modeling with scripting languages: the Nsim simulation compiler prototype for classical field theory
The two different jet classes are associated with different characteristic X-ray states, and a typical XRB will transition between the two jet classes on varying timescales, in unison with transitions between X-ray spectral states.
Very High Angular Resolution Science with the Square Kilometre Array
As a side effect of this optimization procedure, synchronization can emerge: the total output intensity of the system becomes a periodic function and the units will flash in unison [14, 15, 16, 17].
Complex phase space of a simple synchronization model
All the cells in the wire oscillate in unison between the two polarization states.
Consequences of Many-cell Correlations in Treating Clocked Quantum-dot Cellular Automata Circuits
Perhaps one of the two theories (or even both!) may have to undergo significant modifications in order for QG to emerge as a consistent ‘unison-by-alteration’ of the two.
`Iconoclastic', Categorical Quantum Gravity
Magnetically ordered particles of nanometric size generally consist of a single domain, whose constituent spins, at temperatures well below the Curie temperature, rotate in unison.
On the Statics and Dynamics of Magneto-Anisotropic Nanoparticles
Not too close to the Curie temperature, its constituent spins rotate in unison (coherent rotation), so the only relevant degree of freedom left is the orientation of the net magnetic moment.
On the Statics and Dynamics of Magneto-Anisotropic Nanoparticles
The occurrence of the diverse group of cells within a connected system that must act in unison creates an environment of cooperation and competition within that physical space.
Organization and Complexity in a Nested Hierarchical Spin-Glass like Social Space
The macroscopic reorganization of states includes many smaller ob jects, some working in unison, with various time-scales, making the the concept of energy transfer rates among states a relevant issue.
Organization and Complexity in a Nested Hierarchical Spin-Glass like Social Space
However, though many people join in unison in their criticism of the main-stream, their alternative approaches and models do not command consensus yet.
Modeling Market Mechanism with Minority Game
The security of an application depends on the security of all these components operating in unison.
The Random Oracle Methodology, Revisited
In order to move a particle, all of the pieces of the particle must be moved in unison.
Improved Local Lattice Approach for Coulombic Simulations
The upper and lower boundaries make the riseand-fall motions in unison.
Parker Instability in a Self-Gravitating Magnetized Gas Disk: I. Linear Stability Analysis