rhombus
noun [ C ] mathematics specialized uk/ˈrɒm.bəs/ us/ˈrɑːm.bəs/ rhombuses or rhombi /ˈrɒm.baɪ/ /ˈrɑːm.baɪ/
(SHAPE)
菱形
a flat shape that has four sides that are all of equal length
Synonym: diamond
Compare: rhomboid noun square noun (SHAPE)