/ Dictionary / Index D decussate: Meaning and Definition of Find definitions for: de•cus•sate Pronunciation: (v.di-kus'āt, dek'u-sāt"adj.di-kus'āt, -it), [key] — v., adj. -sat•ed, -sat•ing, —v.t., v.i. to cross in the form of anintersect. —adj. in the form of ancrossed; intersected. arranged along the stem in pairs, each pair at right angles to the pair next above or below, as leaves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decussate (Thesaurus) decury decussation Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language