rhomboid

noun

1. an oblique-angled parallelogram with only the opposite sides equal.
2. Anatomy. rhomboideus.

adjective

3. Also rhom·boi·dal. having a form like or similar to that of a rhombus; shaped like a rhomboid.

noun

1. a parallelogram having adjacent sides of unequal length

adjective Also: rhom’boidal

2. having such a shape

n.

1560s, from Middle French rhomboide or directly from Late Latin rhomboides, from Greek rhomboeides “rhomboidal; a rhomboid;” see rhombus + -oid. Related: Rhomboidal. As an adjective from 1690s.

adj.

1. Resembling a parallelogram having unequal adjacent sides.

1. A parallelogram with unequal adjacent sides.

Plural rhombuses rhombi (rŏm′bī)

1. A parallelogram with four equal sides; an equilateral parallelogram.