biquadratic

[ bahy-kwo-drat-ik ]

adjective

1. involving the fourth, but no higher, power of the unknown or variable.

noun

1. quartic ( def 2 ).
2. biquadrate.

biquadratic

/ ˌbaɪkwɒˈdrætɪk /

adjective

1. of or relating to the fourth power

noun

1. a biquadratic equation, such as x ⁴+ x + 6 = 0

Word History and Origins

Origin of biquadratic¹

First recorded in 1655–65; bi- ¹ + quadratic

Example Sentences

When a biquadratic equation has all its terms, its resolution may be always reduced to that of a cubic equation.

From Project Gutenberg

Tartaglia solved the cubic equation, and a little later Ferrari solved the biquadratic.

From Project Gutenberg

Biquadratic, bī-kwod-rat′ik, n. a quantity twice squared, or raised to the fourth power.

From Project Gutenberg