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单词 subregular
释义

subregularadj.

Brit. /ˌsʌbˈrɛɡjᵿlə/, U.S. /ˌsəbˈrɛɡ(jə)lər/
Origin: Formed within English, by derivation. Etymons: sub- prefix, regular adj.
Etymology: < sub- prefix + regular adj.
1. Originally Biology. Almost or not quite regular.
ΘΚΠ
the world > plants > part of plant > growth, movement, or curvature of parts > [adjective] > irregular
subregular1804
hyponastic1875
1804 Curtis's Bot. Mag. 19 733 Corolla subregular, funnelform, rather straight, nodding.
1822 J. Parkinson Outl. Oryctol. 191 An unequal valved, subregular bivalve.
1866 Proc. Acad. Nat. Sci. Philadelphia 117 They are of exclusively cellulose structure, and have frequently a subregular stellate form.
1963 Geography 48 29 Meandering appears to begin with the development of a subregular sequence of pools and riffles on the bed of the channel.
1973 Yale Law Jrnl. 82 1711 Subregular gasoline sold by some majors has also sparked price competition.
2008 Bull. Symbolic Logic 14 411 A regular polygon has equal sides and equal angles. A subregular polyhedron has congruent faces and congruent [polyhedral] angles.
2. Mathematics. Designating an integral of a linear ordinary differential equation that is considered less well-behaved than others. rare.
ΘΚΠ
the world > relative properties > number > calculus > [adjective] > of integration
integrating1654
integrable1728
integral1728
subregular1887
Riemann integrable1918
1887 A. Cayley in Jrnl. f. Reine & Angewandte Math. 100 286 An integral may be a regular integral, or it may be what Thomé calls a normal elementary integral: the theory of these integrals (which I would rather call subregular integrals) requires..further examination.
1900 A. R. Forsyth Theory Differential Equations II. vi. 194 The equation may possess one sub-regular integral.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1804
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