pinnule
noun
- any of the smallest divisions of a leaf which is doubly compound, esp. in ferns
- any of the lateral branches of the arm of a crinoid
See pinnule in American Heritage Dictionary 4
(pĭnˈyo͞ol) also pin·nu·la (pĭnˈyə-lə)
noun pl. pin·nules also
pin·nu·lae (pĭnˈyə-lēˌ) - Botany Any of the ultimate leaflets of a bipinnately compound leaf.
- Zoology A featherlike or plumelike organ or part, such as a small fin, or one of the appendages of a crinoid.
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