† rhizicadj.
Mathematics. Obsolete. rare.
Of or relating to the roots of an equation.
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rhizic1871
1871 W. Walton in Q. Jrnl. Math. 11 91 The two curves P = 0, Q = 0, referred to rectangular axes of co-ordinates u and v, I propose to call rhizic curves, in virtue of their relation to the roots of the equation f(x) = 0.
1874 A. Cayley in Trans. Cambr. Philos. Soc. 12 ii. 395 Cauchy's rhizic theorem.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online September 2020).
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adj.1871