\My"o*tome\, n. [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
    protovertebr[ae]; also, one of the protovertebr[ae]
    themselves.
(c) The muscular system of one metamere of an articulate.