| 单词 | specific levity |
| 释义 | > as lemmasspecific levity a. As a physical quality: The quality or fact of having comparatively little weight; lightness. Also †specific levity: cf. specific gravity n. at gravity n. 4c. ΘΚΠ the world > matter > properties of materials > lightness > [noun] lightnessa1225 levity1598 levitation1739 the world > matter > constitution of matter > lack of density > [noun] > relative specific levity1598 1598 A. M. tr. J. Guillemeau Frenche Chirurg. 40/2 Consideringe theire ponderousnes or levitye. 1645 J. Evelyn Mem. (1857) I. 221 He abounded in things petrified,..a morsel of cork yet retaining its levity, sponges, etc. 1684 R. Boyle Exper. Porosity of Bodies iii. 85 Marble itself abounds with internal Pores..as may be rationally conjectured from the Specifick Levity of it, in comparison of Gold and Lead. 1756 C. Lucas Ess. Waters i. 26 Rain-water..comes nearest to dew in levity, subtility and purity. 1787 G. Winter New Syst. Husbandry 82 When they [vapours] ascend into that region of the atmosphere of the same specifick levity, there they float. 1802 W. Paley Nat. Theol. xii. 232 A covering which shall unite the qualities of warmth, levity, and least resistance to the air. 1818 M. Faraday Exper. Res. (1825) xxx. 166 The re-absorption..being..retarded in consequence of the superior levity of the fluid. 1869 M. Somerville Molecular & Microsc. Sci. i. i. 12 Hydrogen..rises in the air on account of its levity. < as lemmas |
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