Main Entry: la·tis·si·mus dor·si

Pronunciation: \lə-ˈti-sə-məs-ˈdȯr-sī\

Function: noun

Inflected Form(s): plural la·tis·si·mi dorsi \-ˌmī-\

Etymology: New Latin, literally, broadest (muscle) of the back

Date: 1684

: a broad flat superficial muscle chiefly of the middle and lower back that extends, adducts, and rotates the arm medially and draws the shoulder downward and backward