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[trof-uh-lak-sis, troh-fuh-] /ˌtrɒf əˈlæk sɪs, ˌtroʊ fə-/
noun, plural trophallaxes
[trof-uh-lak-seez, troh-fuh-] /ˌtrɒf əˈlæk siz, ˌtroʊ fə-/ (Show IPA)
(among social insects) the exchange of nutriments or other secretions between members of a colony.
Origin of trophallaxis
1915-20; troph- + Greek állaxis exchange, equivalent to allak- (verbid stem of allássein to change; see allo-) + -sis -sis
Related forms
[trof-uh-lak-tik, troh-fuh-] /ˌtrɒf əˈlæk tɪk, ˌtroʊ fə-/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for trophallaxis
  • They also practice trophallaxis, the mutual exchange of food and other desirable substances between members of the colony.
British Dictionary definitions for trophallaxis


the exchange of regurgitated food that occurs between adults and larvae in colonies of social insects
Derived Forms
trophallactic, adjective
Word Origin
C19/20: from New Latin, from tropho- + Greek allaxis exchange, from allassein to change, from allos other
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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