# 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; thus

*a*2 denotes the second power, and

*a*x the

*x*th 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*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]

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Fri 28th February 2020