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## biquadratic |

3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Biquadratic \Bi`quad*rat"ic\, a. [Pref. bi- + quadratic: cf F. biquadratique.] (Math.) Of or pertaining to the biquadrate, or fourth power. {Biquadratic equation} (Alg.), an equation of the fourth degree, or an equation in some term of which the unknown quantity is raised to the fourth power. {Biquadratic root of a number}, the square root of the square root of that number. Thus the square root of 81 is 9, and the square root of 9 is 3, which is the biquadratic root of 81. Hutton. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Biquadratic \Bi`quad*rat"ic\, n. (Math.) a A biquadrate. b A biquadratic equation. From WordNet r 1.6 [wn]: biquadratic adj : of or relating to the fourth power n 1: an algebraic equation of the fourth degree [syn: {biquadrate}, {quartic}, {fourth power}] 2: and equation of the fourth degree [syn: {biquadratic equation}] 3: a polynomial of the fourth degree [syn: {biquadratic polynomial}, {quartic polynomial}]

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