What is "myotomy"

Myotomy \My*ot"o*my\, n. [Myo- + Gr. ? to cut: cf. F. myotomie.] The dissection, or that part of anatomy which treats of the dissection, of muscles.

n. surgical incision or division of a muscle

Myotomy describes a surgical procedure in which muscle is cut.

A common example of a myotomy is the Heller myotomy.