rämˈbȯidēəs noun
( plural rhomboi·dei -ēˌī)
Etymology: New Latin, literally, rhomb-like, from Latin rhomboides + -eus -eous
: either of two muscles that lie beneath the trapezius muscle and connect the spinous processes of various vertebrae with the medial border of the scapula:
a. or rhomboideus minor : a muscle arising from part of the ligamentum nuchae and the last cervical and first thoracic vertebrae
b. or rhomboideus major : a muscle arising from the four or five upper thoracic vertebrae and the supraspinous ligament