heliometer
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
15
Scrabble Score
10
Letters
3
Syllables
8
Unique Chars
Meaning
noun
An astronomical instrument, based on a telescope, for measuring the diameter of the sun; now used to measure the angular distance between stars and other celestial bodies.
Etymology
From helio- + -meter, from Ancient Greek Ἥλιος (Hḗlios), from ἥλιος (hḗlios, “sun”), and French mètre, from Ancient Greek μέτρον (métron, “measure”).