单词 petiolule 释义 petiolule Bot.|ptljul|[ad. mod.L. petiolul-us, dim. of petiolus petiole; also in mod.F. (Littr).]A partial or secondary petiole; the footstalk of a leaflet in a compound leaf.1832Lindley Introd. Bot. i. ii. 94 In all truly compound le...