| / English Dictionary |
COLLIMATOR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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
Classified under:
Nouns denoting man-made objects
Hypernyms ("collimator" is a kind of...):
optical device (a device for producing or controlling light)
Holonyms ("collimator" is a part of...):
prism spectroscope; spectroscope (an optical instrument for spectrographic analysis)
Sense 2
Meaning:
A small telescope attached to a large telescope to use in setting the line of the larger one
Classified under:
Nouns denoting man-made objects
Hypernyms ("collimator" is a kind of...):
scope; telescope (a magnifier of images of distant objects)
Derivation:
collimate (adjust the line of sight of (an optical instrument))
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