Crossword clues for pinnule
The Collaborative International Dictionary
Pinnule
Pinnule \Pin"nule\, n. [L. pinnula, dim. of pinna feather: cf. F. pinnule.]
(Bot.) One of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate.
(Zo["o]l.) Any one of a series of small, slender organs, or parts, when arranged in rows so as to have a plumelike appearance; as, a pinnule of a gorgonia; the pinnules of a crinoid.
Wiktionary
pinnule
n. (context botany English) Any of the ultimate leaflets of a bipinnate or tripinnate leaf; a subleaflet.
WordNet
pinnule
n. division of a usually pinnately divided leaf [syn: pinna]
Usage examples of "pinnule".
The sori are on the upper half of the frond, at the back of the pinnules, in round masses towards the base of the segments, covered with a conspicuous, kidney-shaped indusium.