Definition of base

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Base (n.) A substance used as a mordant.

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Hydroxylamine :: Hydroxylamine (n.) A nitrogenous, organic base, NH2.OH, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a strong reducing agent..
Trinervate :: Trinervate (a.) Having three ribs or nerves extending unbranched from the base to the apex; -- said of a leaf.
Equitant :: Equitant (a.) Overlapping each other; -- said of leaves whose bases are folded so as to overlap and bestride the leaves within or above them, as in the iris..
Kyanol :: Kyanol (n.) A base obtained from coal tar.
Operative :: Operative (a.) Based upon, or consisting of, an operation or operations; as, operative surgery..
Sulphydric :: Sulphydrate (n.) A compound, analogous to a hydrate, regarded as a salt of sulphydric acid, or as a derivative of hydrogen sulphide in which one half of the hydrogen is replaced by a base (as potassium sulphydrate, KSH), or as a hydrate in which the oxygen has been wholly or partially replaced by sulphur..
Mouflon :: Mouflon (n.) A wild sheep (Ovis musimon), inhabiting the mountains of Sardinia, Corsica, etc. Its horns are very large, with a triangular base and rounded angles. It is supposed by some to be the original of the domestic sheep. Called also musimon or musmon..
Echidnine :: Echidnine (n.) The clear, viscid fluid secreted by the poison glands of certain serpents; also, a nitrogenous base contained in this, and supposed to be the active poisonous principle of the virus..
Diacid :: Diacid (a.) Divalent; -- said of a base or radical as capable of saturating two acid monad radicals or a dibasic acid. Cf. Dibasic, a., and Biacid..
Cere :: Cere (n.) The soft naked sheath at the base of the beak of birds of prey, parrots, and some other birds. See Beak..
Porphyritic :: Porphyritic (a.) Relating to, or resembling, porphyry, that is, characterized by the presence of distinct crystals, as of feldspar, quartz, or augite, in a relatively fine-grained base, often aphanitic or cryptocrystalline..
Lion :: Lion (n.) A large carnivorous feline mammal (Felis leo), found in Southern Asia and in most parts of Africa, distinct varieties occurring in the different countries. The adult male, in most varieties, has a thick mane of long shaggy hair that adds to his apparent size, which is less than that of the largest tigers. The length, however, is sometimes eleven feet to the base of the tail. The color is a tawny yellow or yellowish brown; the mane is darker, and the terminal tuft of the tail is black.
Devitrification :: Devitrification (n.) The act or process of devitrifying, or the state of being devitrified. Specifically, the conversion of molten glassy matter into a stony mass by slow cooling, the result being the formation of crystallites, microbites, etc., in the glassy base, which are then called devitrification products..
Porphyry :: Porphyry (n.) A term used somewhat loosely to designate a rock consisting of a fine-grained base (usually feldspathic) through which crystals, as of feldspar or quartz, are disseminated. There are red, purple, and green varieties, which are highly esteemed as marbles..
Basedow''s Disease :: Basedow's disease () A disease characterized by enlargement of the thyroid gland, prominence of the eyeballs, and inordinate action of the heart; -- called also exophthalmic goiter..
Dastardy :: Dastardy (n.) Base timidity; cowardliness.
Dipyridil :: Dipyridil (n.) A crystalline nitrogenous base, C10H8N2, obtained by the reduction of pyridine..
Right :: Right (a.) Upright; erect from a base; having an upright axis; not oblique; as, right ascension; a right pyramid or cone..
Turbinated :: Turbinated (a.) Spiral with the whorls decreasing rapidly from a large base to a pointed apex; -- said of certain shells.
Umbellularia :: Umbellularia (n.) A genus of deep-sea alcyonaria consisting of a cluster of large flowerlike polyps situated at the summit of a long, slender stem which stands upright in the mud, supported by a bulbous base..
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