Entry 2 senses · 2 variants Webster, 1913 Didelphid · Di·del·phid · IPA /daɪˈdɛlfɪd/ a. n. 01 a. Same as Didelphic. 1. Same as Didelphic.(Zool.) See: Didelphic 02 n. A marsupial animal. 1. A marsupial animal.(Zool.)