Definition of
Ha
- (noun, shape) (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
via WordNet, Princeton University
Synonyms of Ha
Alternate forms of Ha
Hypernyms: angular distance
Origin of the word Ha
- c.1300, natural expression found in most European languages; in O.E., Gk., L., O.Fr. as ha ha. A ha-ha (1712), from Fr., was "an obstacle interrupting one's way sharply and disagreeably;" so called because it "surprizes ... and makes one cry Ah! Ah!" ["Le Blond's Gardening," 1712]. more
via Online Etymology Dictionary, ©2001 Douglas Harper