Pronunciation: l ə - ' ti-s ə -m ə s- ' do ̇ r-s ī
Function: noun
Inflected Form: plural la · tis · si · mi dorsi \ - ˌ m ī - \
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