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To double again or repeatedly; to increase by continued or repeated additions; to augment greatly; to multiply. So they Doubly redoubled strokes upon the foe. Shak. n. An optional bid made by the side currently holding the highest bid for the contract, after the opposing side has doubled. This bid increases the score f…

An office or feast celebrated with less solemnity than the double ones. See Double, n., 8.

To unfold, or render single.

A magnifying glass consisting of two plano-convex lenses. It is designed to correct spherical aberration and chromatic dispersion.

lative absolute, under Ablative. Absolute curvature (Geom.), that curvature of a curve of double curvature, which is measured in the osculating plane of the curve. -- Absolute equation (Astron.), the sum of the optic and eccentric equations. -- Absolute space (Physics), space considered without relation to material l…

impose on. [Obs.] Their eyes red and staring, cozened with a moist cloud, and abused by a double object. Jer. Taylor.

egin with the letters of the alphabet in regular order (as Psalm cxix.). See Abecedarian. Double acrostic, a species of enigma, in which words are to be guessed whose initial and final letters form other words.

An air sac, sometimes double or variously lobed, in the visceral cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates, and in the adult may retain a tubular connection with the pharynx or esophagus.

The salt of wisdom of the alchemists, a double salt composed of the chlorides of ammonium and mercury. It was formerly used as a stimulant. Brande & C.

A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.

Hence; A double-dealer; one equally ready to act on either side in party disputes. The rest are hypocrites, ambidexters, so many turning pictures -- a lion on one side, a lamb on the other. Burton.

Double-dealing. (Law)

e; an ambiguous expression. What have been thy answers What but dark, Ambiguous, and with double sense deluding Milton.

Double aces, the lowest throw of all at dice. Hence: Bad luck; anything of no account or value.

wo meanings. An amphibolous sentence is one that is capable of two meanings, not from the double sense of any of the words, but from its admitting of a double construction; e. g., "The duke yet lives that Henry shall depose." Whately.

phibology. If it oracle contrary to our interest or humor, we will create an amphiboly, a double meaning where there is none. Whitlock.

A name applied to the elasmobranch fishes, because the nasal sac is double.

Produced by the conversion of the stamens into petals, as double flowers, like the garden ranunculus. Brande.

Transformed from anthers, as the petals of a double flower.

That point in the orbit of a double star where the smaller star is farthest from its primary.