Definition of rhomboid noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈrɒmbɔɪd//
; NAmE NAmE//ˈrɑːmbɔɪd//
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a flat shape with four straight sides, with only the opposite sides and angles equal to each other Word Originlate 16th cent. (as a noun): from French rhomboïde, or via late Latin from Greek rhomboeidēs, from rhombos.
See the Oxford Advanced American Dictionary entry: rhomboid