heliometer
[ hee-lee-om-i-ter ]
noun
a telescope with a divided, adjustable objective, formerly used to measure small angular distances, as those between celestial bodies.
Origin of heliometer
1Other words from heliometer
- he·li·o·met·ric [hee-lee-uh-me-trik], /ˌhi li əˈmɛ trɪk/, he·li·o·met·ri·cal, adjective
- he·li·o·met·ri·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use heliometer in a sentence
The four long-neglected small heliometers made by Fraunhofer were brought into requisition.
British Dictionary definitions for heliometer
heliometer
/ (ˌhiːlɪˈɒmɪtə) /
noun
a refracting telescope having a split objective lens that is used to determine very small angular distances between celestial bodies
Derived forms of heliometer
- heliometric (ˌhiːlɪəʊˈmɛtrɪk) or heliometrical, adjective
- heliometrically, adverb
- heliometry, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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