poristicadj.

Brit.

/pɒˈrɪstɪk/,

/pɔːˈrɪstɪk/, U.S.

/pɔˈrɪstɪk/

Forms: 1700s poristick, 1800s– poristic.

Origin: A borrowing from Greek. Etymon: Greek ποριστικός.

Etymology: < ancient Greek ποριστικός able to procure (in Hellenistic Greek also used with reference to mathematical problems; compare discussion at porism n.; < ποριστής person who procures ( < πορίζειν (see porism n.) + -τής , suffix forming agent nouns) + -ικός -ic suffix), after porism n. Compare earlier porismatical adj.

Mathematics.

Relating to a porism, porismatic; having the property of rendering a determinate problem indeterminate.

ΘΚΠ

the mind > mental capacity > philosophy > logic > logical proposition > [adjective] > of types of propositions

causalc1530

subalternate1599

equipollent1642

reduplicative1671

subalternating1671

pure1697

poristic1704

desitive1725

inceptive1725

contrary1739

exponible1788

analytic1797

analytical1797

poristical1828

oristica1832

oristicosemeiotica1832

balanced1849

plurative1849

molecular1892

dyadic1897

monadic1897

dispositional1909

non-atomic1934

the world > relative properties > number > mathematics > [adjective] > relating to mathematical enquiry > of a proposition > of a problem

problematical1570

unlimited1702

poristic1704

porismatic1792

cyclotomic1879

complex1965

1704 J. Harris Lexicon Technicum I Poristick Method, in Mathematicks, is that which determines when, by what way, and how many different ways, a Problem may be resolved.

1887 Messenger of Math. 16 152 (title) On Poristic Systems of Circles.

1919 Amer. Jrnl. Math. 41 279 The problem of inscribing a five-line in a planar quartic is poristic; of the ten conditions, nine fall on the lines and one on the curve.

1966 J. H. Cadwell Topics in Recreational Math. v. 47 The property is said to be poristic; there is either no solution or an infinite number.

1976 K. Satyanarayana (title) Poristic theory, pedal lines, Kantor lines, Kantor points and allied topics.

1998 Amer. Math. Monthly 105 183 A whole chapter on ‘Poristic Triangles’, in which circular loci are established for 6 centers, including the Nagel and Gergonne points.

This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	poristic
释义	poristicadj. Brit. /pɒˈrɪstɪk/, /pɔːˈrɪstɪk/, U.S. /pɔˈrɪstɪk/ Forms: 1700s poristick, 1800s– poristic. Origin: A borrowing from Greek. Etymon: Greek ποριστικός. Etymology: < ancient Greek ποριστικός able to procure (in Hellenistic Greek also used with reference to mathematical problems; compare discussion at porism n.; < ποριστής person who procures ( < πορίζειν (see porism n.) + -τής , suffix forming agent nouns) + -ικός -ic suffix), after porism n. Compare earlier porismatical adj. Mathematics. Relating to a porism, porismatic; having the property of rendering a determinate problem indeterminate. ΘΚΠ the mind > mental capacity > philosophy > logic > logical proposition > [adjective] > of types of propositions causalc1530 subalternate1599 equipollent1642 reduplicative1671 subalternating1671 pure1697 poristic1704 desitive1725 inceptive1725 contrary1739 exponible1788 analytic1797 analytical1797 poristical1828 oristica1832 oristicosemeiotica1832 balanced1849 plurative1849 molecular1892 dyadic1897 monadic1897 dispositional1909 non-atomic1934 the world > relative properties > number > mathematics > [adjective] > relating to mathematical enquiry > of a proposition > of a problem problematical1570 unlimited1702 poristic1704 porismatic1792 cyclotomic1879 complex1965 1704 J. Harris Lexicon Technicum I Poristick Method, in Mathematicks, is that which determines when, by what way, and how many different ways, a Problem may be resolved. 1887 Messenger of Math. 16 152 (title) On Poristic Systems of Circles. 1919 Amer. Jrnl. Math. 41 279 The problem of inscribing a five-line in a planar quartic is poristic; of the ten conditions, nine fall on the lines and one on the curve. 1966 J. H. Cadwell Topics in Recreational Math. v. 47 The property is said to be poristic; there is either no solution or an infinite number. 1976 K. Satyanarayana (title) Poristic theory, pedal lines, Kantor lines, Kantor points and allied topics. 1998 Amer. Math. Monthly 105 183 A whole chapter on ‘Poristic Triangles’, in which circular loci are established for 6 centers, including the Nagel and Gergonne points. This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022). < adj.1704
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