'Rhomboid' definitions:

Definition of 'rhomboid'

From: WordNet
adjective
Shaped like a rhombus or rhomboid; "rhomboidal shapes" [syn: rhomboid, rhomboidal]
noun
A parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal
noun
Any of several muscles of the upper back that help move the shoulder blade [syn: rhomboid, rhomboid muscle]

Definition of 'Rhomboid'

From: GCIDE
  • Rhomboid \Rhom"boid\ (r[o^]m"boid), n. [Gr. ??? rhomboidal; ??? rhomb + e'i^dos shape: cf. F. rhombo["i]de.] (Geom.) An oblique-angled parallelogram like a rhomb, but having only the opposite sides equal, the length and with being different. [1913 Webster]

Definition of 'Rhomboid'

From: GCIDE
  • Rhomboid \Rhom"boid\ (r[o^]m"boid), a. Same as Rhomboidal. [1913 Webster]