Collimator is a 10 letter word which starts with the letter C and ends with the letter R for which we found 2 definitions.
Definition |
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(n.) A telescope arranged and used to determine errors of collimation both vertical and horizontal. |
(n.) 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. |