Definition of pinna

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Pinna (n.) Any species of Pinna, a genus of large bivalve mollusks found in all warm seas. The byssus consists of a large number of long, silky fibers, which have been used in manufacturing woven fabrics, as a curiosity..

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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..
Pinnet :: Pinnet (n.) A pinnacle.
Trijugate :: Trijugate (a.) In three pairs; as, a trijugate leaf, or a pinnate leaf with three pairs of leaflets..
Pinnatiped :: Pinnatiped (a.) Having the toes bordered by membranes; fin-footed, as certain birds..
Finial :: Finial (n.) The knot or bunch of foliage, or foliated ornament, that forms the upper extremity of a pinnacle in Gothic architecture; sometimes, the pinnacle itself..
Pinnatifid :: Pinnatifid (a.) Divided in a pinnate manner, with the divisions not reaching to the midrib..
Pinna :: Pinna (n.) A leaflet of a pinnate leaf. See Illust. of Bipinnate leaf, under Bipinnate..
Needle :: Needle (n.) Any slender, pointed object, like a needle, as a pointed crystal, a sharp pinnacle of rock, an obelisk, etc..
Acacia :: Acacia (n.) A genus of leguminous trees and shrubs. Nearly 300 species are Australian or Polynesian, and have terete or vertically compressed leaf stalks, instead of the bipinnate leaves of the much fewer species of America, Africa, etc. Very few are found in temperate climates..
Quadrijugous :: Quadrijugous (a.) Pinnate, with four pairs of leaflets; as, a quadrijugous leaf..
Knop :: Knop (n.) Any boldly projecting sculptured ornament; esp., the ornamental termination of a pinnacle, and then synonymous with finial; -- called also knob, and knosp..
Osmund :: Osmund (n.) A fern of the genus Osmunda, or flowering fern. The most remarkable species is the osmund royal, or royal fern (Osmunda regalis), which grows in wet or boggy places, and has large bipinnate fronds, often with a panicle of capsules at the top. The rootstock contains much starch, and has been used in stiffening linen..
Bipinnatifid :: Bipinnatifid (a.) Doubly pinnatifid.
Tripinnate :: Tripinnate (a.) Having bipinnate leaflets arranged on each side of a rhachis.
Jugum :: Jugum (n.) A pair of the opposite leaflets of a pinnate plant.
Pinnacled :: Pinnacled (imp. & p. p.) of Pinnacl.
Penninerved :: Penninerved (a.) Pinnately veined or nerved.
Sapindus :: Sapindus (n.) A genus of tropical and subtropical trees with pinnate leaves and panicled flowers. The fruits of some species are used instead of soap, and their round black seeds are made into necklaces..
Tamarind :: Tamarind (n.) A leguminous tree (Tamarindus Indica) cultivated both the Indies, and the other tropical countries, for the sake of its shade, and for its fruit. The trunk of the tree is lofty and large, with wide-spreading branches; the flowers are in racemes at the ends of the branches. The leaves are small and finely pinnated..
Pinnace :: Pinnace (n.) A small vessel propelled by sails or oars, formerly employed as a tender, or for coast defence; -- called originally, spynace or spyne..
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