two octaves, or fifteen notes, in diatonic progression; a fifteenth. — Double pica. See under Pica. —
Double play (Baseball), a play by which two players are put out at the same time. — Double plea
(Law), a plea alleging several matters in answer to the declaration, where either of such matters alone
would be a sufficient bar to the action. Stephen. — Double point (Geom.), a point of a curve at
which two branches cross each other. Conjugate or isolated points of a curve are called double points,
since they possess most of the properties of double points They are also called acnodes, and those
points where the branches of the curve really cross are called crunodes. The extremity of a cusp is
also a double point. — Double quarrel. (Eccl. Law) See Duplex querela, under Duplex. — Double
refraction. (Opt.) See Refraction. — Double salt. (Chem.) (a) A mixed salt of any polybasic acid
which has been saturated by different bases or basic radicals, as the double carbonate of sodium and
potassium, NaKCO3.6H2O. (b) A molecular combination of two distinct salts, as common alum, which
consists of the sulphate of aluminium, and the sulphate of potassium or ammonium. — Double shuffle,
a low, noisy dance. — Double standard (Polit. Econ.), a double standard of monetary values; i. e., a
gold standard and a silver standard, both of which are made legal tender. — Double star (Astron.),
two stars so near to each other as to be seen separate only by means of a telescope. Such stars may
be only optically near to each other, or may be physically connected so that they revolve round their
common center of gravity, and in the latter case are called also binary stars. — Double time (Mil.).
Same as Double-quick. — Double window, a window having two sets of glazed sashes with an air
space between them.
Double
(Dou"ble) adv. Twice; doubly.
I was double their age.
Swift. Double
(Dou"ble), v. t. [imp. & p. p. Doubled ; p. pr. & vb. n. Doubling ] [OE. doblen, dublen,
doublen, F. doubler, fr. L. duplare, fr. duplus. See Double, a.]
1. To increase by adding an equal number, quantity, length, value, or the like; multiply by two; as, to double
a sum of money; to double a number, or length.
Double six thousand, and then treble that.
Shak. 2. To make of two thicknesses or folds by turning or bending together in the middle; to fold one part
upon another part of; as, to double the leaf of a book, and the like; to clinch, as the fist; — often followed
by up; as, to double up a sheet of paper or cloth. Prior.
Then the old man
Was wroth, and doubled up his hands.
Tennyson. 3. To be the double of; to exceed by twofold; to contain or be worth twice as much as.
Thus reënforced, against the adverse fleet,
Still doubling ours, brave Rupert leads the way.
Dryden. 4. To pass around or by; to march or sail round, so as to reverse the direction of motion.
Sailing along the coast, the doubled the promontory of Carthage.
Knolles. 5. (Mil.) To unite, as ranks or files, so as to form one from each two.
Double
(Dou"ble), v. i.
1. To be increased to twice the sum, number, quantity, length, or value; to increase or grow to twice as
much.
'T is observed in particular nations, that within the space of three hundred years, notwithstanding all
casualties, the number of men doubles.
T. Burnet.
