quartic

[kwawr-tik] Algebra.
adjective
1.
of or pertaining to the fourth degree.
noun
2.
Also called biquadratic. a quartic polynomial or equation.

Origin:
1855–60; < Latin quart(us) fourth + -ic

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World English Dictionary
quartic (ˈkwɔːtɪk)
 
adj, —n
another word for biquadratic
 
[C19: from Latin quartus fourth]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
People figured out how to solve cubic and then quartic equations.
Since performing this calculation exactly would require the solution to a quartic equation, a cheaper estimate is generated.
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