Botany some of the ultimate leaflets of a bipinnately element leaf.
Zoology A featherlike or plumelike organ or part, like a small fin, or among appendages of a crinoid.
some of the ultimate leaflets of a bipinnate or tripinnate leaf; a subleaflet.
One of the little divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under bipinnate.
Any one of a number of small, thin body organs, or parts, whenever organized in rows in order to have a plumelike appearance
In ichthyology, specifically, a little fin-like appendage.
In botany, a secondary pinna; one of the pinnately disposed divisions of a pinna: noting particularly the ultimate divisions associated with frond in ferns. Additionally pinnula. See cuts under indusium and Nothochlæna.
A small pin fixed upon a pre-telescopic astronomical instrument and serving, like picture of a gun, to enable the observer in order to make an exact pointing upon a star or any other celestial object.
A theory or system of social reform which contemplates a complete reconstruction of society with a more just and equitable distribution of property and labor In popular usage the term is often employed to indicate any lawless revolutionary social scheme See Communism Fourierism Saint Simonianism forms of socialism...