Biquadratic equation
Biquadratic Bi`quad*rat"ic, a. [Pref. bi- + quadratic: cf. F. biquadratique.] (Math.) Of or pertaining to the biquadrate, or fourth power. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • biquadratic equation — noun an equation of the fourth degree • Syn: ↑biquadratic • Derivationally related forms: ↑biquadratic (for: ↑biquadratic) • Hypernyms: ↑equation * * * …   Useful english dictionary

  • Biquadratic — Bi quad*rat ic, a. [Pref. bi + quadratic: cf. F. biquadratique.] (Math.) Of or pertaining to the biquadrate, or fourth power. [1913 Webster] {Biquadratic equation} (Alg.), an equation of the fourth degree, or an equation in some term of which the …   The Collaborative International Dictionary of English

  • Biquadratic root of a number — Biquadratic Bi quad*rat ic, a. [Pref. bi + quadratic: cf. F. biquadratique.] (Math.) Of or pertaining to the biquadrate, or fourth power. [1913 Webster] {Biquadratic equation} (Alg.), an equation of the fourth degree, or an equation in some term… …   The Collaborative International Dictionary of English

  • Biquadratic — Bi quad*rat ic, n. (Math.) (a) A biquadrate. (b) A biquadratic equation. [1913 Webster] …   The Collaborative International Dictionary of English

  • biquadratic — I noun 1. an algebraic equation of the fourth degree • Syn: ↑biquadrate, ↑quartic, ↑fourth power • Derivationally related forms: ↑biquadratic (for: ↑biquadrate) …   Useful english dictionary

  • biquadratic — [bī΄kwäd rat′ik] adj. Math. of or involving the fourth power of a quantity n. 1. such a quantity 2. an algebraic equation of the fourth power; quartic equation …   English World dictionary

  • biquadratic — adj. relating to the 4th power; having a form of a polynomial ot the 4th degree (Mathematics) n. polynomial or equation of the 4th degree (Mathematics) …   English contemporary dictionary

  • biquadratic —   a. Mathematics, of the fourth power; n. number s fourth power; equation involving fourth power of unknown quantity …   Dictionary of difficult words

  • Quartic equation — In mathematics, a quartic equation is one which can be expressed as a quartic function equalling zero. The general form of a quartic equation is:ax^4+bx^3+cx^2+dx+e=0 ,where a ne; 0.The quartic is the highest order polynomial equation that can be …   Wikipedia

  • quartic equation — noun : biquadratic equation …   Useful english dictionary

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