I. ˈrämˌbȯid noun
( -s )
Etymology: Middle French rhomboïde, from Latin rhomboides, from Greek rhomboeidēs rhombus-shaped, rhomboidal, from rhombos rhomb + -oeidēs -oid — more at rhomb
: a parallelogram in which the angles are oblique and adjacent sides are unequal
[s]rhomboid.jpg[/s]
II. adjective
Etymology: rhomb- + -oid
1. : shaped somewhat like a rhombus
2. : rhomboidal