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Meaning of inter vivos

in•ter vi•vos

Pronunciation: (in'tur vī'vōs, vē'-), [key]
— Law. Law.
  1. (esp. of a gift or trust) taking effect during the lifetimes of the parties involved; between living persons.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.