Definition of pinna

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Pinna (n.) One of the primary divisions of a decompound leaf.

Lern More About Pinna

Tripinnate :: Tripinnate (a.) Having bipinnate leaflets arranged on each side of a rhachis.
Byssus :: Byssus (n.) A tuft of long, tough filaments which are formed in a groove of the foot, and issue from between the valves of certain bivalve mollusks, as the Pinna and Mytilus, by which they attach themselves to rocks, etc..
Tripinnatifid :: Tripinnatifid (a.) Thrice pinnately cleft; -- said of a pinnatifid leaf when its segments are pinnatifid, and the subdivisions of these also are pinnatifid..
Bipinnaria :: Bipinnaria (n.) The larva of certain starfishes as developed in the free-swimming stage.
Pinnatiped :: Pinnatiped (n.) Any bird which has the toes bordered by membranes.
Pari- :: Pari- () A combining form signifying equal; as, paridigitate, paripinnate..
Pinna :: Pinna (n.) The auricle of the ear. See Ear.
Pinnate :: Pinnate (a.) Alt. of Pinnate.
Wing-leaved :: Wing-leaved (a.) Having pinnate or pinnately divided leaves.
Unijugate :: Unijugate (a.) Having but one pair of leaflets; -- said of a pinnate leaf.
Paripinnate :: Paripinnate (a.) Pinnate with an equal number of leaflets on each side; having no odd leaflet at the end.
Pinnatifid :: Pinnatifid (a.) Divided in a pinnate manner, with the divisions not reaching to the midrib..
Catadromous :: Catadromous (a.) Having the lowest inferior segment of a pinna nearer the rachis than the lowest superior one; -- said of a mode of branching in ferns, and opposed to anadromous..
Pinnae :: Pinnae (pl. ) of Pinn.
Imparipinnate :: Imparipinnate (a.) Pinnate with a single terminal leaflet.
Pinnatilobate :: Pinnatilobate (a.) Having lobes arranged in a pinnate manner.
Pinnacle :: Pinnacle (n.) Anything resembling a pinnacle; a lofty peak; a pointed summit.
Pinnule :: Pinnule (n.) One of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate..
Pinnately :: Pinnately (adv.) In a pinnate manner.
Pinnace :: Pinnace (n.) A procuress; a pimp.
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