Search the Dictionary

Duplication of the cube (Math.), the operation of finding a cube having a volume which is double that of a given cube.

Doubleness; a twofold state. [Archaic] Do not affect duplicities nor triplicities, nor any certain number of parts in your division of things. I. Watts.

utchman's breeches (Bot.), a perennial American herb (Dicentra cucullaria), with peculiar double-spurred flowers. See Illust. of Dicentra. -- Dutchman's laudanum (Bot.), a West Indian passion flower (Passiflora Murucuja); also, its fruit. -- Dutchman's pipe (Bot.), an American twining shrub (Aristolochia Sipho). Its…

An instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end of a telescope for measuring accurately the diameter of the image of the object glass there formed; which measurement, compared with the actual diameter of the glass, gives the magnify…

pedal surface of an ellipsoid (see Pedal); a surface used in explaining the phenomena of double refraction and their relation to the elastic force of the luminous ether in crystalline media.

ike projection of the snout. -- Elephant paper, paper of large size, 23 × 28 inches. -- Double elephant paper, paper measuring 26Paper. -- Elephant seal (Zoöl.), an African jumping shrew (Macroscelides typicus), having a long nose like a proboscis. -- Elephant's ear (Bot.), a name given to certain species of the ge…

ential to constitute the offense or burglary. Burrill. Bill of entry. See under Bill. -- Double entry, Single entry. See Bookkeeping. -- Entry clerk (Com.), a clerk who makes the original entries of transactions in a business. -- Writ of entry (Law), a writ issued for the purpose of obtaining possession of land from…

The use of expressions susceptible of a double signification, with a purpose to mislead. There being no room for equivocations, there is no need of distinctions. Locke.

e between the approximate result and the true result; -- used particularly in the rule of double position.

under Fall, v. i. -- Falling band, the plain, broad, linen collar turning down over the doublet, worn in the early part of the 17th century. -- Falling sickness (Med.), epilepsy. Shak. -- Falling star. (Astron.) See Shooting star. -- Falling stone, a stone falling through the atmosphere; a meteorite; an aërolite.…

te of being false; contrariety to the fact; inaccuracy; want of integrity or uprightness; double dealing; unfaithfulness; treachery; perfidy; as, the falseness of a report, a drawing, or a singer's notes; the falseness of a man, or of his word.

double rhymes, or rhymes (called in French feminine rhymes because they end in e weak, or feminine) in which two syllables, an accented and an unaccented one, correspond at the end of each line.

One of a complex series of double cyanides of ferric iron and some other base. Potassium ferricyanide (Chem.), red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.…

One of a series of complex double cyanides of ferrous iron and some other base. Potassium ferrocyanide (Chem.), yellow prussiate of potash; a tough, yellow, crystalline salt, K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate, prussian blue. It is…

sheaves of different diameters in the same plane, instead of side by side as in a common double block. Knight. -- Fiddle bow, fiddlestick. -- Fiddle fish (Zoöl.), the angel fish. -- Fiddle head, an ornament on a ship's bow, curved like the volute or scroll at the head of a violin. -- Fiddle pattern, a form of the…

The hand with the fingers doubled into the palm; the closed hand, especially as clinched tightly for the purpose of striking a blow. Who grasp the earth and heaven with my fist. Herbert.

f plank, supported wholly by the water; a bateau bridge. See Bateau. (b) (Mil.) A kind of double bridge, the upper one projecting beyond the lower one, and capable of being moved forward by pulleys; -- used for carrying troops over narrow moats in attacking the outworks of a fort. (c) A kind of ferryboat which is guide…

taining to, derived from, or consisting of, fluorine and boron. Fluoridic acid (Chem.), a double fluoride, consisting essentially of a solution of boron fluoride, in hydrofluoric acid. It has strong acid properties, and is the type of the borofluorides. Called also borofluoric acid.

A double salt of fluoric and phosphoric acids.

A double fluoride of silicon and some other (usually basic) element or radical, regarded as a salt of fluosilicic acid; -- called also silicofluoride.