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gib·bous

gibbous

 
pronunciation:
gI bs
part of speech: adjective
definition: When we say there is "gibbous moon," we are talking about one of the phases that the moon goes through every month. When there is a gibbous moon, the lit up part of the moon is quite big. The moon is not completely lit up, but we can see a lot of it.
When there is a gibbous moon, the bright part of the moon is more than half.
derivations: gibbously (adv.), gibbousness (n.)