Boost your vocab and unleash your potential!

Recently viewed words:
Definitions of collimator
  1. noun
    a small telescope attached to a large telescope to use in setting the line of the larger one
    type of:
  2. 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
Explanation of collimator
My lists:
Recently viewed words: