Dictionary.com
Thesaurus.com
Synonyms

collimate

American  
[kol-uh-meyt] / ˈkɒl əˌmeɪt /

verb (used with object)

collimated, collimating
  1. to bring into line; make parallel.

  2. to adjust accurately the line of sight of (a telescope).


collimate British  
/ ˈkɒlɪˌmeɪt /

verb

  1. to adjust the line of sight of (an optical instrument)

  2. to use a collimator on (a beam of radiation or particles)

  3. to make parallel or bring into line

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of collimate

1615–25; < Latin collimātus, misreading of collineātus, past participle of collineāre to direct in a straight line, equivalent to col- col- 1 + -lineā-, verbal derivative of linea line 1 + -tus past participle suffix

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Dr. Donald Frush, chief of pediatric radiology at the Duke University School of Medicine, said that failing to properly cone, or collimate, the radiation was rare.

From New York Times Feb. 28, 2011

The collimated outflow produces the radio waves, while the disk of gas surrounding the black hole emits X-rays.

From Science Daily Feb. 21, 2024

However, Sgr A* currently has limited nearby matter, so the black hole has been relatively quiet, with weakly collimated outflows, in recent millennia.

From Science Daily Feb. 21, 2024

The result is an intense beam of collimated, or parallel, rays of electromagnetic radiation.

From Nature Jan. 8, 2019

The γ rays are collimated in such a manner that only 1.00% of them strike the patient.

From Textbooks Aug. 12, 2015

A bright white light under water is collimated and directed upon a prism.

From Textbooks Aug. 12, 2015

The collimating lens L₂ is filled by this beam, and the rays issue parallel to one another and fall on the prisms P₁ and P₂, which disperse them.

From Colour Measurement and Mixture by Abney, W. de W.

Light which enters the collimating lens partly passes through the prisms and is partly reflected from the first surface of the prism; that we utilize, thus giving a second shadow.

From Scientific American Supplement, No. 595, May 28, 1887 by Various

If the source be a point or a line, and a collimating lens be used, the incident waves may be regarded as plane.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" by Various

I took out the little collimating screws first, then I drew out the tube, and in that I found a brass plate screwed on the diaphragm which contained the lines.

From Maria Mitchell: Life, Letters, and Journals by Mitchell, Maria

In addition to the observations which he has left us, he was the first inventor or proposer of the collimating telescope, an instrument which has become almost a necessity wherever accurate observations are made.

From Side-Lights on Astronomy and Kindred Fields of Popular Science by Newcomb, Simon

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training