Definition of gibbous in English:

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gibbous

Pronunciation: /ˈɡibəs/
/ˈjibəs/

adjective

1(Of the moon) having the observable illuminated part greater than a semicircle and less than a circle.
Example sentences
  • My hand was clasped around hers, and the light of the gibbous moon set a silver path out before us.
  • On the 16th Jupiter appears to the upper left of the waxing gibbous Moon.
  • The waxing gibbous moon was still behind the scudding clouds, but it was far from pitch dark.
1.1Convex or protuberant: gibbous eyes
More example sentences
  • The male hooded merganser, with his distinct gibbous moon crest, demands immediate attention.

Derivatives

gibbosity

Pronunciation: /ɡəˈbäsədē/
noun
Example sentences
  • Females of this species also lack the tendency towards frontal gibbosity shown by males.

gibbously

adverb
Example sentences
  • Early in the week the Moon waxes gibbously, and later in the week, after full, gibbously wanes.
  • We will see the Moon waxing in its gibbous phase the early part of the week, while the last two days see it gibbously waning.

gibbousness

noun

Origin

Late Middle English: from late Latin gibbosus, from Latin gibbus 'hump'.

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