Webster's Online Dictionary
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Definition: ASTROMETER

Part of Speech Definition
Noun 1. An instrument for comparing the relative amount of the light of stars.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "Astrometer" was first used in popular English literature: sometime before 1828. (references)

Note: Astrometer \As*trom"e*ter\, noun. [Astro- meter.]. (references)

Definition: ASTROMETER

Part of SpeechDefinition
Noun1. An instrument for comparing the relative amount of the light of stars.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "ASTROMETER" was first used in popular English literature: sometime before 1828. (references)

Note: Astrometer \As*trom"e*ter\, noun. [Astro- meter.]. (references)