| 释义 |
pinnula
pin·nule P0317900 (pĭn′yo͞ol) also pin·nu·la (pĭn′yə-lə)n. pl. pin·nules also pin·nu·lae (pĭn′yə-lē′) 1. Botany One of the secondary divisions of a binnately compound leaf.2. Zoology A small featherlike part or subdivision of an appendage, especially one of the small branches on the arm of a crinoid.
[Latin pinnula, diminutive of pinna, feather; see pet- in Indo-European roots.]
pin′nu·lar adj.
EncyclopediaSeepinnule |