1. (

• rhomboid

) a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal ;

2. (

• rhomboid ,
• rhomboid_muscle

) any of several muscles of the upper back that help move the shoulder blade ;

1. (

• rhomboid ,
• rhomboidal

) shaped like a rhombus or rhomboid; "rhomboidal shapes" ;