spiricadj.n.
/ˈspʌɪərɪk/ Geometry. rare.
A. adj.
Of or pertaining to, having the form of, a tore or torus.
ΘΚΠ
the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > relating to solid of revolution
spirical1788
hyperboloidal1879
toroidal1881
toric1890
spiric1891
1891 in Cent. Dict.
B. n.
A plane section of a torus.
ΘΚΠ
the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > section
ungle1669
ungul1670
section1704
ungula1710
spiric1788
1788 T. Taylor tr. Proclus Philos. & Math. Comm. I. 134 But, with respect to these sections, the conic were invented by Menæchmus,..But the spiric by Perseus.
Derivatives
ΘΚΠ
the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > relating to solid of revolution
spirical1788
hyperboloidal1879
toroidal1881
toric1890
spiric1891
1788 T. Taylor tr. Proclus Philos. & Math. Comm. I. 134 Conic, or spirical sections are generated from a particular section of solids.
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2018).
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adj.n.1788