Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
angŭlāris, e, adj. [angulus], having corners or angles, angular: lapis, a square stone, Cato, R. R. 14, 1; Col. 5, 3, 2: lapis, a corner-stone, Vulg. Job, 38, 6; and, in trop. sense, ib. Isa. 28, 16; ib. Ephes. 2, 20; ib. 1 Pet. 2, 6: pilae, corner pillars of an arcade, Vitr. 7, 11.
Hence, subst.: angŭlā-ris, is, m., an angular vessel, Apic. 5, 3 al.