| 释义 |
pinnule
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.pinnule (ˈpɪnjuːl) or pinnulan, pl pinnules or pinnulae (ˈpɪnjʊˌliː) 1. (Botany) any of the lobes of a leaflet of a pinnate compound leaf, which is itself pinnately divided2. (Zoology) zoology any feather-like part, such as any of the arms of a sea lily[C16: from Latin pinnula, diminutive of pinna feather] ˈpinnular adjpin•nule (ˈpɪn yul)
n. 1. a part or organ resembling a barb of a feather, a fin, or the like. 2. a secondary pinna, one of the pinnately disposed divisions of a bipinnate leaf. [1585–95; < Latin pinnula, diminutive of pinna feather; see -ule] pin′nu•lar (-yə lər) adj. Thesaurus| Noun | 1. |  pinnule - division of a usually pinnately divided leafpinnaleaflet - part of a compound leaf |
pinnule
pinnule[′pin‚yül] (biology) The secondary branch of a plumelike or pinnate organ. pinnule
pinnule a subdivision of a leaf pinna, often bearing SPORANGIA in ferns.pinnule
Related to pinnule: pinnationSynonyms for pinnulenoun division of a usually pinnately divided leafSynonymsRelated Words |