Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Serratus
Medically reviewed by Min Clinic Staff | Updated: January 2026
Serratus: One of several muscles of the back and thorax. that have interdigitating slips that ressemble the notches on the cutting edge of a saw. (Serrated refers to a finely notched edge.)
See also: Serratus anterior; Serratus magnus; Serratus posterior inferior; Serratus posterior superior.