Bible Encyclopedias
Biquadratic
1911 Encyclopedia Britannica
(from the Lat. bi-, bis, twice, and quadratus, squared). In mathematics, the biquadratic power or root of a quantity is its fourth power or root (see ALGEBRA); a biquadratic equation is an equation in which the highest power of the unknown is the fourth (see EQUATION: Bgquadratic).
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Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Biquadratic'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/b/biquadratic.html. 1910.