MYOTOME
Etymology
Noun
myotome (plural myotomes)
(biology) In vertebrate embryonic development, a group of tissues formed from somites that develop into the body wall muscle.
Synonyms
• myocomma
Source: Wiktionary
My"o*tome, n. Etym: [See Myotomy.] (Anat.)
(a) A muscular segment; one of the zones into which the muscles of
the trunk, especially in fishes, are divided; a myocomma.
(b) One of the embryonic muscular segments arising from the
protovertebræ; also, one of the protovertebræ themselves.
(c) The muscular system of one metamere of an articulate.
Source: Webster’s Unabridged Dictionary 1913 Edition