membrānācĕus and
membrānācĕus and -cĭus, a, um, adj. membrana, of skin or membrane, skinny, membranaceous (post-Aug.). Lit.: vespertilio, cui membranaceae pinnae uni, Plin. 10, 61, 81, § 168: PVGILLARES, of parchment, Inscr. Grut. 174, 7.— Like a skin or membrane: quibusdam cortex membranaceus, ut viti, arundini, Plin. 16, 31, 55, § 126.