Definition of Pinnule. Meaning of Pinnule. Synonyms of Pinnule

Here you will find one or more explanations in English for the word Pinnule. Also in the bottom left of the page several parts of wikipedia pages related to the word Pinnule and, of course, Pinnule synonyms and on the right images related to the word Pinnule.

Definition of Pinnule

Pinnule
Pinnule Pin"nule, n. [L. pinnula, dim. of pinna feather: cf. F. pinnule.] 1. (Bot.) One of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate. 2. (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.

Meaning of Pinnule from wikipedia

- compound leaf, or a pinnate subdivision of a multipinnate leaf is called a pinnule or pinnula. Pinnate leaf of a legume with 10 leaflets Mimosa pudica folding...
- crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some...
- which each pinna are divided are called pinnules, and the extensions of the rachis that support these pinnules, are called rachillae. Rarely, a frond may...
- the stipe are known as pinnae and are often again divided into smaller pinnules. Fern stems are often loosely called rhizomes, even though they grow underground...
- distinguished by the innermost pinnule on the bottom side of the bottom pinna: this pinnule is longer than the adjacent pinnules in D. carthusiana, but shorter...
- several branching off the rachis. Each leaflet is called a pinnule. The group of pinnules on each secondary vein forms a pinna; for example, Albizia (silk...
- seta. Scales on pinnule veins are whitish. Sori are round and borne on either side of the pinnule midvein, towards the base of the pinnule segment. They...
- leukopenia penn-, pinn- feather Latin penna, pinna pennate, pinnacle, pinnate, pinnule pent- five Gr**** πέντε (pénte), πεντάς, πεντάδος (pentás, pentádos), πεντάκις...
- down the side of the body, fringed on either side by brachioles, like the pinnules of a modern crinoid. Eventually, except for the crinoids, all the classes...
- leaflets or pinnae, each divided into 10–20 pairs of secondary leaflets or pinnules. Pollen grains are elongated, approximately 52 µm in size.[citation needed]...