Meaning of trophallaxis

troph•al•lax•is

Pronunciation: (trof"u-lak'sis, trō"fu-), [key]
— pl. -lax•es
  1. (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.