Inverse proportion
Inverse In*verse", a. [L. inversus, p. p. of invertere: cf. F. inverse. See {Invert}.] [1913 Webster] 1. Opposite in order, relation, or effect; reversed; inverted; reciprocal; -- opposed to {direct}. [1913 Webster]

2. (Bot.) Inverted; having a position or mode of attachment the reverse of that which is usual. [1913 Webster]

3. (Math.) Opposite in nature and effect; -- said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity; as, multiplication is the inverse operation to division. The symbol of an inverse operation is the symbol of the direct operation with -1 as an index. Thus sin-1 x means the arc or angle whose sine is x. [1913 Webster]

{Inverse figures} (Geom.), two figures, such that each point of either figure is inverse to a corresponding point in the order figure.

{Inverse points} (Geom.), two points lying on a line drawn from the center of a fixed circle or sphere, and so related that the product of their distances from the center of the circle or sphere is equal to the square of the radius.

{Inverse ratio}, or {Reciprocal ratio} (Math.), the ratio of the reciprocals of two quantities.

{Inverse proportion}, or {Reciprocal proportion}, an equality between a direct ratio and a reciprocal ratio; thus, 4 : 2 : : 1/3 : 1/6, or 4 : 2 : : 3 : 6, inversely. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Inverse proportion — Proportion Pro*por tion, n. [F., fr. L. proportio; pro before + portio part or share. See {Portion}.] [1913 Webster] 1. The relation or adaptation of one portion to another, or to the whole, as respect magnitude, quantity, or degree; comparative… …   The Collaborative International Dictionary of English

  • inverse proportion — (also inverse ratio) ► NOUN ▪ a relation between two quantities such that one increases in proportion as the other decreases …   English terms dictionary

  • inverse proportion — inverse ratio, relationship between values such that as one increases the other decreases in a proportionate fashion …   English contemporary dictionary

  • inverse proportion — (also inverse ratio) noun a relation between two quantities such that one increases in proportion as the other decreases …   English new terms dictionary

  • inverse proportion — noun : the relation between two inversely proportional quantities …   Useful english dictionary

  • inverse — in‧verse [ˌɪnˈvɜːs◂ ǁ ɜːrs◂] adjective in inverse proportion/​relation to something used for saying that one thing increases at the same rate as another related thing gets smaller: • Stocks moved in inverse relation to oil prices throughout the… …   Financial and business terms

  • Proportion — Pro*por tion, n. [F., fr. L. proportio; pro before + portio part or share. See {Portion}.] [1913 Webster] 1. The relation or adaptation of one portion to another, or to the whole, as respect magnitude, quantity, or degree; comparative relation;… …   The Collaborative International Dictionary of English

  • Inverse — In*verse , a. [L. inversus, p. p. of invertere: cf. F. inverse. See {Invert}.] [1913 Webster] 1. Opposite in order, relation, or effect; reversed; inverted; reciprocal; opposed to {direct}. [1913 Webster] 2. (Bot.) Inverted; having a position or… …   The Collaborative International Dictionary of English

  • Inverse figures — Inverse In*verse , a. [L. inversus, p. p. of invertere: cf. F. inverse. See {Invert}.] [1913 Webster] 1. Opposite in order, relation, or effect; reversed; inverted; reciprocal; opposed to {direct}. [1913 Webster] 2. (Bot.) Inverted; having a… …   The Collaborative International Dictionary of English

  • Inverse points — Inverse In*verse , a. [L. inversus, p. p. of invertere: cf. F. inverse. See {Invert}.] [1913 Webster] 1. Opposite in order, relation, or effect; reversed; inverted; reciprocal; opposed to {direct}. [1913 Webster] 2. (Bot.) Inverted; having a… …   The Collaborative International Dictionary of English

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