单词 | acumination |
释义 | acuminationn. 1. A pointed or tapering part; (Mineralogy) †a part of a crystal regarded as notionally resulting from acumination (sense 2) (obsolete). Now chiefly Botany and Zoology. ΘΚΠ the world > space > shape > fact or condition of tapering > condition of tapering to a point > [noun] > a point pointc1300 neb?a1425 peakc1450 peck1481 cag1604 sharp1633 acuminate1640 cuspis1646 cusp1647 acumination1651 nib1713 spit-point1796 1651 P. Armin tr. F. Glisson et al. Treat. Rickets xiii. 144 And let these things suffice to have been spoken concerning the narrowness and acumination [L. acuminationis] of the Breast in this affect. 1659 J. Pearson Expos. Apostles Creed iv. 384 The coronary thorns..did also pierce his tender and sacred temples to a multiplicity of pains, by their numerous acuminations. 1707 J. Drake Anthropol. Nova II. iv. v. 677 That Morbid Acumination of the Sternum, which is observ'd in Rickety Children. 1804 R. Jameson Mineral. I. 213 The extremity of the acumination is often truncated. 1841 Trans. Amer. Philos. Soc. 7 318 Achenium very remarkable for its tenuity and acumination at either extremity. 1865 T. F. Betton tr. H. V. Regnault Elements Chem. I. 18 Sometimes, the faces of the acumination are equal in number to the faces forming the primitive angle. 1882 J. D. Hooker Flora Brit. India III. 535 Leaves..parallel-sided, the acumination often sudden into a short obtuse tail. 1962 Bryologist 65 93 Leaves without an abrupt acumination. 2001 T. K. Philips & D. K. Young in R. H. Arnett & M. C. Thomas Amer. Beetles I. 22/2 Anal region surrounded by..distally toothed dorsal and ventral acuminations. 2. The action of giving a point to something or bringing something to a point (chiefly figurative); (Mineralogy) †the notional replacement of an angle or plane of a crystal by three or more planes meeting in a point (obsolete). ΘΚΠ society > leisure > the arts > literature > style of language or writing > vigour or force > [noun] > mordancy > making pungent acumination1653 the world > space > shape > fact or condition of tapering > condition of tapering to a point > [noun] > making pointed piking1440 acumination1794 1653 E. Waterhouse Humble Apol. Learning 190 Courtesies they receive gratefully, and pay the Donors with the Marble Statues of their Wits, which erect and inscribe (with notable zeal and acumination) their Memorials in every mind they meet with. 1794 J. G. Schmeisser Syst. Mineral. I. 27 Alteration of principal Figures, (B.) apparently produced by the Loss of Angles or Edges. (1.) By Truncation... (2.) By Cuniation... (3.) By Acumination. 1805 T. Weaver tr. A. G. Werner Treat. Fossils 113 Acumination is that kind of modification of the primary form in which a crystal loses some or all its angles, or extreme planes, presenting in their stead, at the altered part, three or more planes converging together. 1837 W. Whewell Hist. Inductive Sci. III. xv. i. 197 Truncation, acuation and acumination, or replacement by a plane, an edge, a point respectively. 1879 Cornhill Mag. Dec. 689 The acumination consisting mainly in a more frequent and sarcastic repetition of the unfortunate Mr. Disraeli's titles and distinctions. 1908 M. W. Stone Every Man his Chance (1909) iii. i. 128 With guarded depreciations she had inhibited too extravagant projects or with quick pertinent modification had brought the sanely planned to logical acumination. 2006 G. M. Backes et al. Gender, Health & Ageing 15 Debates are necessary on..the acumination of gender differences in old age. ΘΚΠ the world > space > shape > fact or condition of tapering > condition of tapering to a point > [noun] spearinessa1722 spikinessa1722 peakedness1832 pointedness1843 peakiness1861 acumination1866 1866 T. Carlyle Reminisc. (1881) I. 183 Steadily denied acumination or definite consistency and direction to a point. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). < |
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