The Collaborative International Dictionary of English v.0.48:
Hexangular \Hex*an"gu*lar\, a. [Hex- + angular. Cf. Sexangular.] Having six angles or corners. [1913 Webster]WordNet (r) 3.0 (2006):
hexangular adj 1: having six sides or divided into hexagons [syn: hexangular, hexagonal]