gibbous

[ gib-uh s ]
/ ˈgɪb əs /

adjective

Astronomy. (of a heavenly body) convex at both edges, as the moon when more than half full.
Also gib·bose [gib-ohs] /ˈgɪb oʊs/.

Origin of gibbous

1350–1400; Middle English < Latin gibbōsus humped, equivalent to gibb(a) hump + -ōsus -ous

OTHER WORDS FROM gibbous

gib·bous·ly, gib·bose·ly, adverbgib·bous·ness, gib·bose·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for gibbous

British Dictionary definitions for gibbous

gibbous

gibbose (ˈɡɪbəʊs)

/ (ˈɡɪbəs) /

adjective

(of the moon or a planet) more than half but less than fully illuminated
having a hunchback; hunchbacked
bulging

Derived forms of gibbous

gibbously, adverbgibbousness, noun

Word Origin for gibbous

C17: from Late Latin gibbōsus humpbacked, from Latin gibba hump
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

Medical definitions for gibbous

gibbous
[ gĭbəs ]

adj.

Characterized by convexity; protuberant.
Having a hump; humpbacked.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for gibbous

gibbous
[ gĭbəs ]

More than half but less than fully illuminated. Used to describe the Moon or a planet. Compare crescent.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.