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1. Shaped like a rhombus or rhomboid
   "rhomboid shapes";
   - rhomboidal

1. A parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal
    
2. Any of several muscles of the upper back that help move the shoulder blade
   - rhomboid muscle

Derived forms: rhomboids

Type of: parallelogram, skeletal muscle, striated muscle

Encyclopedia: Rhomboid