Word Games Pro Dictionary
collimator
noun
Optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the…
Quick reference
Word Facts
Listen
Audio Pronunciation
Audio pronunciation is unavailable for this word.
Meaning
Definitions
noun
Optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam
noun
A small telescope attached to a large telescope to use in setting the line of the larger one
Check yourself
Practise This Word
Three quick questions on this word. Nothing is recorded — practise it as often as you like.