Exponent of a ratio
Exponent Ex*po"nent, n. [L. exponens, -entis, p. pr. of exponere to put out, set forth, expose. See {Expound}.] 1. (Alg.) A number, letter, or any quantity written on the right hand of and above another quantity, and denoting how many times the latter is repeated as a factor to produce the power indicated;

Note: thus a^{2} denotes the second power, and a^{x} the xth power, of a (2 and x being the exponents). A fractional exponent, or index, is used to denote the root of a quantity. Thus, a^{1/3} denotes the third or cube root of a. [1913 Webster]

2. One who, or that which, stands as an index or representative; as, the leader of a party is the exponent of its principles. [1913 Webster]

3. one who explains, expounds, or interprets. [PJC]

{Exponent of a ratio}, the quotient arising when the antecedent is divided by the consequent; thus, 6 is the exponent of the ratio of 30 to 5. [R.] [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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