either of the large muscles on each side of the upper back
Origin of trapeziusModern Latin from trapezium: see trapezium
Either of two large flat triangular muscles running from the base of the occiput to the middle of the back that support and make it possible to raise the head and shoulders.
Origin of trapeziusNew Latin from Late Latin trapezium trapezium (from the shape of the muscles paired) ; see trapezium .
(plural trapezii or trapeziuses)
- (anatomy) A large vertebrate skeletal muscle divided into an ascending, descending, and transverse portion, attaching the neck and central spine to the outer extremity of the scapula; it functions in scapular elevation, adduction, and depression.
Unknown, probably has similar roots as other trap- terms, being related to Ancient Greek terms like Ï„ÏÎ¬Ï€ÎµÎ¶Î± (trapeza).