deuterostome


deu·tero·stome

noun \ˈdü-tə-rō-ˌstōm also ˈdyü-\

Definition of DEUTEROSTOME

:  any of a major division (Deuterostomia) of the animal kingdom that includes the bilaterally symmetrical animals (as the chordates) with indeterminate cleavage and a mouth that does not arise from the blastopore

Origin of DEUTEROSTOME

New Latin Deuterostomia, group name, from deuter- + Greek stoma mouth — more at stomach
First Known Use: 1950

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