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collimator

From Wiktionary, the free dictionary

English

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English Wikipedia has an article on:
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Etymology

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    From collimate + -or.

    Pronunciation

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    • Audio (US):(file)
    • Rhymes: -eɪtə(ɹ)

    Noun

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    collimator (plural collimators)

    1. (physics) An optical device that generates a parallel beam of light. Often used to compensate for laser beam divergence.
    2. (physics) A similar device that produces a parallel beam of particles such as neutrons.
    3. (astronomy) A small telescope attached to a larger one, used to point it in the correct general direction.

    Derived terms

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    Anagrams

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