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Medical Term:


Pronunciation: sō′mīt

Definition: One of the paired, metamerically arranged cell masses formed in the early embryonic paraxial mesoderm; commencing in the third or early fourth week in the region of the hindbrain, they develop in a caudal direction typically until 42 pairs are formed.

Synonym(s): mesoblastic segment

[G. sōma, body, + -ite]