/ Dictionary / Index D declinate: Meaning and Definition of Find definitions for: dec•li•nate Pronunciation: (dek'lu-nāt", -nit), [key] — adj. having a downward curve or slope; bending away, as from the horizontal: a declinate flower. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. declinable declination Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language