Definition of umber

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Umber (n.) A brown or reddish pigment used in both oil and water colors, obtained from certain natural clays variously colored by the oxides of iron and manganese. It is commonly heated or burned before being used, and is then called burnt umber; when not heated, it is called raw umber. See Burnt umber, below..

Lern More About Umber

Mess :: Mess (n.) A number of persons who eat together, and for whom food is prepared in common; especially, persons in the military or naval service who eat at the same table; as, the wardroom mess..
Holohemihedral :: Holohemihedral (a.) Presenting hemihedral forms, in which all the sectants have halt the whole number of planes..
Umber :: Umber (n.) See Grayling, 1..
Short-handed :: Short-handed (a.) Short of, or lacking the regular number of, servants or helpers..
Peziza :: Peziza (n.) A genus of fungi embracing a great number of species, some of which are remarkable for their regular cuplike form and deep colors..
Many :: Many (a.) A large or considerable number.
Sommeil :: Sommeil (n.) Slumber; sleep.
Choice :: Choice (n.) A sufficient number to choose among.
Some :: Some (a.) Consisting of a greater or less portion or sum; composed of a quantity or number which is not stated; -- used to express an indefinite quantity or number; as, some wine; some water; some persons. Used also pronominally; as, I have some..
Handicap :: Handicap (v. t.) To encumber with a handicap in any contest; hence, in general, to place at disadvantage; as, the candidate was heavily handicapped..
Sluiceway :: Sluiceway (n.) An artificial channel into which water is let by a sluice; specifically, a trough constructed over the bed of a stream, so that logs, lumber, or rubbish can be floated down to some convenient place of delivery..
Lumberman :: Lumberman (n.) One who is engaged in lumbering as a business or employment.
Massacre :: Massacre (n.) The killing of a considerable number of human beings under circumstances of atrocity or cruelty, or contrary to the usages of civilized people; as, the massacre on St. Bartholomew's Day..
Reckon :: Reckon (v. t.) To count; to enumerate; to number; also, to compute; to calculate..
Metrograph :: Metrograph (n.) An instrument attached to a locomotive for recording its speed and the number and duration of its stops.
Multiplicator :: Multiplicator (n.) The number by which another number is multiplied; a multiplier.
Toadstool :: Toadstool (n.) A name given to many umbrella-shaped fungi, mostly of the genus Agaricus. The species are almost numberless. They grow on decaying organic matter..
Pyridine :: Pyridine (n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine..
Paucity :: Paucity (n.) Fewness; smallness of number; scarcity.
Valence :: Valence (n.) The degree of combining power of an atom (or radical) as shown by the number of atoms of hydrogen (or of other monads, as chlorine, sodium, etc.) with which it will combine, or for which it can be substituted, or with which it can be compared; thus, an atom of hydrogen is a monad, and has a valence of one; the atoms of oxygen, nitrogen, and carbon are respectively dyads, triads, and tetrads, and have a valence respectively of two, three, and four..
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