gibbous

[gib-uhs]
adjective
1.
Astronomy. (of a heavenly body) convex at both edges, as the moon when more than half full. See diag. under moon.
Also, gibbose [gib-ohs] .


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

gibbously, gibbosely, adverb
gibbousness, gibboseness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To gibbous
Collins
World English Dictionary
gibbous or gibbose (ˈɡɪbəs, ˈɡɪbəʊs)
 
adj
1.  (of the moon or a planet) more than half but less than fully illuminated
2.  having a hunchback; hunchbacked
3.  bulging
 
[C17: from Late Latin gibbōsus humpbacked, from Latin gibba hump]
 
gibbose or gibbose
 
adj
 
[C17: from Late Latin gibbōsus humpbacked, from Latin gibba hump]
 
'gibbously or gibbose
 
adv
 
'gibbousness or gibbose
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

gibbous
c.1400, from L.L. gibbous "hunchbacked," from L. gibbus "hump, hunch," of uncertain origin.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

gibbous gib·bous (gĭb'əs)
adj.

  1. Characterized by convexity; protuberant.

  2. Having a hump; humpbacked.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
gibbous   (gĭb'əs)  Pronunciation Key 
More than half but less than fully illuminated. Used to describe the Moon or a planet. Compare crescent.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Sometimes it's a waning gibbous phase, low in the west at sunrise.
Most noticeable are the half-moon and football-shaped gibbous moon, phases separated by two or three days.
The crescent and gibbous phases happen in between those times.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;