trapezii

/T R AH0 P IY1 Z IY0/
noun
  1. 1

    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.

Source: https://en.wiktionary.org/wiki/trapezii, https://en.wiktionary.org/wiki/trapezius