BIQUADRATICS
Noun
biquadratics
plural of biquadratic
Source: Wiktionary
BIQUADRATIC
Bi`quad*rat"ic, a. Etym: [Pref. bi- + quadratic: cf. F.
biquadratique.] (Math.)
Definition: 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.
Bi`quad*rat"ic, n. (Math.)
(a) A biquadrate.
(b) A biquadratic equation.
Source: Webster’s Unabridged Dictionary 1913 Edition