Biquadratic meaning

bīkwŏ-drătĭk
Of or relating to the fourth degree.
adjective
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An algebraic equation of the fourth degree.
noun
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(mathematics) A biquadratic equation.
noun
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Of or involving the fourth power of a quantity.
adjective
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Such a quantity.
noun
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An algebraic equation of the fourth power; quartic equation.
noun
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(mathematics) Of a polynomial expression, involving only the second and fourth powers of a variable, as x4 + 3x2 + 2. Sometimes extended to any expression involving the biquadrate or fourth power (but no higher powers), as x4 − 4x3 + 3x2x + 1.
adjective
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Origin of biquadratic