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Word of the Day Tuesday, June 9, 2026

gibbousness

/ˈɡɪbəsnəs/ noun · British & US
Valid in UK
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What does gibbousness mean?

noun

The state of being gibbous, typically referring to the shape of a moon or a body that is more than half full but not yet full.

Example

"The astronomer studied the gibbousness of the moon, noting its gradual increase in illumination."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for gibbousness

Antonyms of gibbousness

Rhymes with gibbousness

Etymologically related