ETYM Greek deltoeides delta-shaped; delta the name of the letter DELTA; + eidos form: cf. French deltoďde. Related to Delta.
Shaped like a delta or triangle.
Of a leaf shape; suggesting a capital delta, with a point at the apex.
ETYM Latin triangularis: cf. French triangulaire.
1. Having three angles; forming or shaped like a triangle.
2. Involving three parties or elements; SYN. trilateral, tripartite, three-party, three-way.