Definition of pinna

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

Lern More About Pinna

Pinnulate :: Pinnulate (a.) Having each pinna subdivided; -- said of a leaf, or of its pinnae..
Runcinate :: Runcinate (a.) Pinnately cut with the lobes pointing downwards, as the leaf of the dandelion..
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..
Pinnated :: Pinnated (a.) Consisting of several leaflets, or separate portions, arranged on each side of a common petiole, as the leaves of a rosebush, a hickory, or an ash. See Abruptly pinnate, and Illust., under Abruptly..
Water Parsnip :: Water parsnip () Any plant of the aquatic umbelliferous genus Sium, poisonous herbs with pinnate or dissected leaves and small white flowers..
Rowan Tree :: Rowan tree () A european tree (Pyrus aucuparia) related to the apple, but with pinnate leaves and flat corymbs of small white flowers followed by little bright red berries. Called also roan tree, and mountain ash. The name is also applied to two American trees of similar habit (Pyrus Americana, and P. sambucifolia)..
Water Milfoil :: Water milfoil () Any plant of the genus Myriophyllum, aquatic herbs with whorled leaves, the submersed ones pinnately parted into capillary divisions..
Pinnacle :: Pinnacle (n.) An architectural member, upright, and generally ending in a small spire, -- used to finish a buttress, to constitute a part in a proportion, as where pinnacles flank a gable or spire, and the like. Pinnacles may be considered primarily as added weight, where it is necessary to resist the thrust of an arch, etc..
Wallaba :: Wallaba (n.) A leguminous tree (Eperua falcata) of Demerara, with pinnate leaves and clusters of red flowers. The reddish brown wood is used for palings and shingles..
Pinnacled :: Pinnacled (imp. & p. p.) of Pinnacl.
Needle :: Needle (n.) Any slender, pointed object, like a needle, as a pointed crystal, a sharp pinnacle of rock, an obelisk, etc..
Wing-leaved :: Wing-leaved (a.) Having pinnate or pinnately divided leaves.
Trijugate :: Trijugate (a.) In three pairs; as, a trijugate leaf, or a pinnate leaf with three pairs of leaflets..
Tripinnatifid :: Tripinnatifid (a.) Thrice pinnately cleft; -- said of a pinnatifid leaf when its segments are pinnatifid, and the subdivisions of these also are pinnatifid..
Pinnately :: Pinnately (adv.) In a pinnate manner.
Sea Trumpet :: Sea trumpet () A great blackish seaweed of the Southern Ocean, having a hollow and expanding stem and a pinnate frond, sometimes twenty feet long..
Pinna :: Pinna (n.) A leaflet of a pinnate leaf. See Illust. of Bipinnate leaf, under Bipinnate..
Pepper Dulse :: Pepper dulse () A variety of edible seaweed (Laurencia pinnatifida) distinguished for its pungency.
Chervil :: Chervil (n.) A plant (Anthriscus cerefolium) with pinnately divided aromatic leaves, of which several curled varieties are used in soups and salads..
Pari- :: Pari- () A combining form signifying equal; as, paridigitate, paripinnate..
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