presomite

presomite

 [pre-so´mīt]
referring to embryos before the appearance of somites.

pre·so·mite

(prē-sō'mīt),
Relating to the embryonic stage before the appearance of somites (before day 19 in human embryos).

pre·so·mite

(prē-sō'mīt)
Relating to the embryonic stage before the appearance of somites (before day 19 in human embryos).