gibbous
/ˈɡɪbəs/ adjective
- adjective Curved or bulged outward.
- adjective (astronomy, of a celestial body) Having more than half (but not the whole) of its disc illuminated.
- adjective Humpbacked.
Synonyms
bulging convex crookbacked humpbacked protuberant crookback humped hunchbacked kyphotic gibbose
Etymology
From Middle English gibbous, from Latin gibbus (“humped, hunched”), probably cognate with cubō (“bend oneself, lie down”), Italian gobba (“humpback”), Ancient Greek κῡφός (kūphós, “humpback, bent”), κύβος (kúbos, “cube, vertebra”), Spanish giboso (“humped”). Also ultimately compare dialectal Norwegian keiv (“slanted, wrong”), German schief (“crooked, slanting”) and Dutch scheef (“crooked, slanting”).
Webster’s 1913
- adjective Swelling by a regular curve or surface; protuberant; convex; as, the moon is gibbous between the half-moon and the full moon.
- adjective Hunched; hump-backed. [Obs.] Sir T. Browne.
Etymology [Cf. F. gibbeux. See Gibbose.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “gibbous”, CC BY-SA 4.0. Details