Triangular
Part of speech: adjective
Definition: Shaped like a triangle. Of, or pertaining to, triangles. Having a triangle as a base; as, a triangular prism, a triangular pyramid. Having three elements or parties; trilateral, tripartite.
Angulate
Part of speech: adjective
Definition: Shaped with corners or angles.The shape of stems, leaves and wings.
Part of speech: verb
Definition: To make, or to become, angular