subtraction
Compound Com"pound, a. [OE. compouned, p. p. of compounen. See {Compound}, v. t.] Composed of two or more elements, ingredients, parts; produced by the union of several ingredients, parts, or things; composite; as, a compound word. [1913 Webster]

Compound substances are made up of two or more simple substances. --I. Watts. [1913 Webster]

{Compound addition}, {subtraction}, {multiplication}, {division} (Arith.), the addition, subtraction, etc., of compound numbers.

{Compound crystal} (Crystallog.), a twin crystal, or one seeming to be made up of two or more crystals combined according to regular laws of composition.

{Compound engine} (Mech.), a form of steam engine in which the steam that has been used in a high-pressure cylinder is made to do further service in a larger low-pressure cylinder, sometimes in several larger cylinders, successively.

{Compound ether}. (Chem.) See under {Ether}.

{Compound flower} (Bot.), a flower head resembling a single flower, but really composed of several florets inclosed in a common calyxlike involucre, as the sunflower or dandelion.

{Compound fraction}. (Math.) See {Fraction}.

{Compound fracture}. See {Fracture}.

{Compound householder}, a householder who compounds or arranges with his landlord that his rates shall be included in his rents. [Eng.]

{Compound interest}. See {Interest}.

{Compound larceny}. (Law) See {Larceny}.

{Compound leaf} (Bot.), a leaf having two or more separate blades or leaflets on a common leafstalk.

{Compound microscope}. See {Microscope}.

{Compound motion}. See {Motion}.

{Compound number} (Math.), one constructed according to a varying scale of denomination; as, 3 cwt., 1 qr., 5 lb.; -- called also {denominate number}.

{Compound pier} (Arch.), a clustered column.

{Compound quantity} (Alg.), a quantity composed of two or more simple quantities or terms, connected by the sign + (plus) or - (minus). Thus, a + b - c, and bb - b, are compound quantities.

{Compound radical}. (Chem.) See {Radical}.

{Compound ratio} (Math.), the product of two or more ratios; thus ab:cd is a ratio compounded of the simple ratios a:c and b:d.

{Compound rest} (Mech.), the tool carriage of an engine lathe.

{Compound screw} (Mech.), a screw having on the same axis two or more screws with different pitch (a differential screw), or running in different directions (a right and left screw).

{Compound time} (Mus.), that in which two or more simple measures are combined in one; as, 6-8 time is the joining of two measures of 3-8 time.

{Compound word}, a word composed of two or more words; specifically, two or more words joined together by a hyphen. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Subtraction — Sub*trac tion, n. [L. subtractio a drawing back. See {Subtract}, and cf. {Substraction}.] 1. The act or operation of subtracting or taking away a part. [1913 Webster] 2. (Math.) The taking of a lesser number or quantity from a greater of the same …   The Collaborative International Dictionary of English

  • Subtraction — Subtraction, subtrahiren, eine der 4 arithmetischen Species, welche von 2 gegebenen Größen (dem Minuendus d.h. dem zu Verkleinernden, und Subtrahendus d.h. Abzuziehenden) die Differenz od. den Unterschied aufsucht; ihr Zeichen ist – (lat. minus,… …   Herders Conversations-Lexikon

  • subtraction — I noun abstraction, ademption, curtailment, decrease, decrement, deduction, diminution, discount, exception, lessening, reduction, removal, retrenchment, shortening, shrinkage, subduction, withdrawal II index curtailment, decrease, decrement,… …   Law dictionary

  • subtraction — c.1400, withdrawal, removal, from L.L. subtractionem (nom. subtractio) a drawing back, taking away, from pp. stem of L. subtrahere take away, draw off, from sub from under (see SUB (Cf. sub )) + trahere to pull, draw (see TRACT (Cf …   Etymology dictionary

  • subtraction — [səb trak′shən] n. [ML subtractio < LL(Ec), a drawing back] a subtracting or being subtracted; esp., the mathematical process of finding the difference between two numbers or quantities …   English World dictionary

  • Subtraction — 5 − 2 = 3 (verbally, five minus two equals three ) …   Wikipedia

  • subtraction — The offense of withholding or withdrawing from another man what by law he is entitled to. There are various descriptions of this offense, of which the principal are as follows: (1) Subtraction of suit and services, which is a species of injury… …   Black's law dictionary

  • subtraction — noun Etymology: Middle English subtraccion, from Anglo French sustraction, subtraction, from Late Latin subtraction , subtractio, from Latin subtrahere Date: 15th century an act, operation, or instance of subtracting: as a. the withdrawing or… …   New Collegiate Dictionary

  • subtraction — subtract UK US /səbˈtrækt/ verb [T] ► to take a number or amount away from another number or amount: subtract sth from sth »The costs of manufacturing are subtracted from revenue. subtraction noun [C or U] ► »Net output can be calculated by… …   Financial and business terms

  • subtraction — n. to do subtraction * * * [səb trækʃ(ə)n] to do subtraction …   Combinatory dictionary

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