rhom·boid
noun/ˈrɒmbɔɪd/
/ˈrɑːmbɔɪd/
(geometry)- a flat shape with four straight sides, with only the opposite sides and angles equal to each other
enlarge image长菱形 Word Originlate 16th cent. (as a noun): from French rhomboïde, or via late Latin from Greek rhomboeidēs, from rhombos.