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...
- with a large upward-pointing pinnule at the base, and the other pinnules decreasing in size toward the pinna tip; the pinnules have softly bristly tips....
- virginianum Frond shape Widest near bottom Widest in middle Pinnule shape Narrow, more nearly pointed Broader, more rounded Basal pinnule notch Present Absent...
- facing upwards and is surrounded by five, often divided rays with feathery pinnules. Comatulids live on the seabed and on reefs in tropical and temperate waters...
- 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...
- diminutive of pinna (plural: pinnae); either as such or in the Anglicised form: pinnule, it is differently defined by various authorities. Some apply it to the...
- maidenhair, is a fern in the genus Adiantum. It has black stems and large flat pinnules. It is frequently grown as an ornamental greenhouse or houseplant. Ho****aki...
- usually attached to a pad of tissue that was probably homologous to a pinnule on the vegetative fronds. For instance, Crossotheca synangia bore elongate...
- pinnules are symmetrically clustered at the base and are connected obliquely to the upper surface of the rachis by this base. The apex of the pinnule...