interdepend,v.|ˌɪntədɪˈpɛnd| [inter- 1 b.] intr. To depend upon each other mutually. 1848Hare Guesses (1867) 482 Bringing them [atoms] to coalesce and interdepend.1888Voice (N.Y.) 15 Mar., Under the state all rights and duties are mutual—they interdepend.