 | WordWeight : Weighing the Words |
| WordWeight : Weighing the Words |
Collimator
Pronunciation : Col"li*ma`tor
Part of Speech : n.
Definition : 1. (Astron.)
Defn: A telescope arranged and used to determine errors of collimation, both vertical and horizontal. Nichol.
2. (Optics)
Defn: A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder                               |