[troph.al.lax.is] n [NL, fr. troph- + Gk allaxis exchange, fr. allassein to change, exchange, fr. allos other--more at else] (1918): exchange of food (as from special glands) between social insects (as ants or termites)
TROPHALLAXIS
Meaning of TROPHALLAXIS in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012