WordNet
teres major muscle
n. teres muscle that moves the arm and rotates it medially [syn: teres major, musculus teres major]
Wikipedia
Teres major muscle
The teres major muscle ( Latin teres meaning 'rounded') is a muscle of the upper limb and one of seven scapulohumeral muscles. It is a thick but somewhat flattened muscle, innervated by the lower subscapular nerve ( C5 and C6).