RHOM'BOID, noun [Gr. rhomb, and form.] 1. In geometry, a figure having some resemblance to a rhomb; or a quadrilateral figure whose opposite sides and angles are equal, but which is neither equilateral nor equiangular. 2. adjective In anatomy, the rhomboid muscle is a thin, broad and obliquely square fleshy muscle, between the basis of the scapula and the spina dorsi.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI