[ kol-uh-meyt ]
/ ˈkɒl əˌmeɪt /

verb (used with object), col·li·mat·ed, col·li·mat·ing.

to bring into line; make parallel.
to adjust accurately the line of sight of (a telescope).

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 line1 + -tus past participle suffix

Related forms

col·li·ma·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for collimation

British Dictionary definitions for collimation


/ (ˈkɒlɪˌmeɪt) /

verb (tr)

to adjust the line of sight of (an optical instrument)
to use a collimator on (a beam of radiation or particles)
to make parallel or bring into line

Derived Forms

collimation, noun

Word Origin for collimate

C17: from New Latin collimāre, erroneously for Latin collīneāre to aim, from com- (intensive) + līneāre, from līnea 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

Medicine definitions for collimation


[ kŏl′ə-māshən ]


The process of restricting and confining an x-ray beam to a given area.
In nuclear medicine, the process of restricting the detection of emitted radiations to a given area of interest.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.