- (esp of the moon) decreasing; waning
WordReference Random House Unabridged Dictionary of American English © 2026
de•cres•cent
(di kres′ənt),USA pronunciation adj.
de•cres′cence, n.
- diminishing;
decreasing. - waning, as the moon.
- Latin dēcrēscent- (stem of dēcrēscēns), present participle of dēcrēscere to decrease; see -ent
- 1600–10
Collins Concise English Dictionary © HarperCollins Publishers::
decrescent /dɪˈkrɛsənt/ adj