deuterostome

(redirected from Deuterostomia)
Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to Deuterostomia: Bilateria, Protostomia

deuterostome

(do͞o′tə-rō-stōm′)
n.
Any of a numerous animals of the group Deuterostomia, in which the anus develops from the first opening in the embryo and the mouth develops later, and including the echinoderms, hemichordates, and chordates.