deltoid

The deltoid muscle, a triangular muscle on the human shoulder.

The deltoid ligament, a triangular ligament on the human ankle.

A kite (quadrilateral having two pairs of edges of equal length, the edges of each pair touching each other at one end).

A deltoid curve (hypocycloid with three cusps).

In the shape of the uppercase Greek letter delta (Δ); triangular.

In the shape of the uppercase Greek letter delta (Δ); triangular.

Of or pertaining to the deltoid muscle.