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Vinony

trophallaxis

noun

  1. transfer of food or other fluids among members of a community through mouth-to-mouth or anus-to-mouth feeding
L1139605 on Wikidata ↗

Wiktionary

noun

  1. The mutual exchange of (fluid) food between individuals, especially in social insects.

    “Trophallaxis is at its most highly developed in social insects such as ants, wasps, bees and termites, but is also used by some birds, and by wolves and vampire bats.”