Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sex-angŭlus, a, um, adj. [angulus], sexangular, hexagonal: cera, Ov. M. 15, 382: cellae (apium), Plin. 11, 11, 12, § 29: figura, id. 37, 5, 20, § 76: laevor laterum, id. 37, 4, 15, § 56: crystallus, Sol. 15, 29 fin.