1.AdjectiveResembling or shaped like a geometric kite (a deltoid); having the characteristics of a deltoid or pertaining to a polyhedron composed of kite-shaped faces.
"Each face of the complex Catalan solid exhibits a distinctly deltoidal geometric boundary.; The polyhedron's surface can be decomposed into twelve independent, non-overlapping deltoidal sections."
2.AdjectiveOf, relating to, or resembling the deltoid muscle of the shoulder or its surrounding region.
3.AdjectiveOf, relating to, or resembling a river delta.