Meaning Of The Word Protostome

Real Dictionary

What's the definition of Protostome? Find Protostome meanings, definitions and more at the Real Dictionary online.

Protostome Meaning

Protostome Definition
Protostome Definition

What's The Definition Of Protostome?

protostome in British English
noun: a mollusc, annelid, arthropod or other animal in which the mouth develops before the anus at embryonic stage
noun: any member of the lower invertebrate phyla in which the mouth appears before the anus during development, cleavage is spiral and determinate, and the coelom forms as a splitting of the mesoderm

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