/ Dictionary / Index T trophallaxis: Meaning and Definition of Find definitions for: troph•al•lax•is Pronunciation: (trof"u-lak'sis, trō"fu-), [key] — pl. -lax•es (among social insects) the exchange of nutriments or other secretions between members of a colony. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trophaeum trophi Related Content Daily Word Quiz: benevolent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language