Definify.com
Webster 1913 Edition
Astrometer
As-trom′e-ter
,Noun.
[
Astro-
+ meter
.] An instrument for comparing the relative amount of the light of stars.
Definition 2024
astrometer
astrometer
English
Noun
astrometer (plural astrometers)
- An instrument designed to measure the brightness, relation, or apparent magnitude of stars.
References
- astrometer in The Century Dictionary, The Century Co., New York, 1911