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

• 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 — 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 — adjective or noun Date: 1668 quartic …   New Collegiate Dictionary

• biquadratic — /buy kwo drat ik/, Math. adj. 1. involving the fourth, but no higher, power of the unknown or variable. n. 2. quartic (def. 2). 3. biquadrate. [1655 65; BI 1 + QUADRATIC] * * * …   Universalium

• biquadratic — adjective Of a polynomial expression, involving only the second and fourth powers of a variable, as x + 3x + 2. Sometimes extended to any expression involving the fourth power of variable (but no higher powers), as x minus; 4x + 3x minus; x + 1.… …   Wiktionary

• biquadràtic — bi|qua|drà|tic Mot Pla Adjectiu variable …   Diccionari Català-Català

• 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 — bi·quadratic …   English syllables

• biquadratic — bi•quad•rat•ic [[t]ˌbaɪ kwɒˈdræt ɪk[/t]] adj. 1) math. involving the fourth, but no higher, power of the unknown or variable in a mathematical formulation 2) math. quartic 2) • Etymology: 1655–65 …   From formal English to slang