Pronunciation: ˌ yü- ' s ō -sh ə l
Function: adjective
Date: 1966
: living in a cooperative group in which usually one female and several males are reproductively active and the nonbreeding individuals care for the young or protect and provide for the group < eusocial termites, ants, and naked mole rats>
– eu · so · ci · al · i · ty \ - ˌ s ō -sh ē - ' a-l ə -t ē \ noun