The Collaborative International Dictionary
Diphyozooid
Diphyozooid \Diph`y*o*zo"oid\, n. [Gr. ? of double from + E. zooid.] (Zo["o]l.) One of the free-swimming sexual zooids of Siphonophora.
Wiktionary
diphyozooid
n. (context zoology English) One of the free-swimming sexual zooids of Siphonophora.