Collimate Definition

kŏlə-māt
collimated, collimates, collimating
verb
collimated, collimates, collimating
To make (light rays, etc.) parallel.
Webster's New World
To adjust the line of sight of (a telescope, surveyor's level, etc.)
Webster's New World

To focus into a narrow beam or column.

Lead bricks were placed around the radioactive source so that the escaping gamma rays would be limited to a collimated beam rather than filling the lab.
I need to collimate my telescope so that the images are clearer.
Wiktionary
Synonyms:
parallel

Origin of Collimate

  • New Latin collīmāre collīmāt- alteration of Latin collīneāre to aim com- intensive pref. com– līneāre to make straight (from līnea line line1)

    From American Heritage Dictionary of the English Language, 5th Edition

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