- the body-wall musculature in a single segment of primitive chordates and segmented invertebrates
- one of the paired mesodermal masses in a vertebrate embryo from which the musculature develops
Origin of myotomemyo- + -tome
- A segmental mass of mesoderm in a vertebrate embryo that differentiates into skeletal muscle.
- A muscle or group of muscles derived from one somite and innervated by a single segment of a spinal nerve.
- A knife for dividing muscle during surgery.