单词 pinnule 释义 pinnule|pnjul|Also (in sense 1) 6–8 pinule; (in senses 2 and 3) in Lat. form pinnula (pl. -).[ad. L. pinnula, dim. of pinna plume, wing: see pinna2.]1. Each of the two sights (consisting of a small square metal plate, pierced with hole...