| 释义 |
nebulosity|nɛbjʊˈlɒsɪtɪ|
[a. F. nébulosité or ad. late L. nebulōsitāt-em; see next and -ity.]
1. Nebulous or indistinctly luminous appearance; a faintly luminous patch or mass.
1761Phil. Trans. LII. 398 Mr. Hirst..affirms, that such nebulosity was seen by them. 1789Herschel ibid. LXXIX. 221 It is among these that we find the largest assemblages of stars, and most diffusive nebulosities. 1802Ibid. XCII. 499 The great milky nebulosity of Orion. 1837Goring & Pritchard Microgr. 105 A slight fog of the diffused kind.., or a penumbra or nebulosity encircling numerous points. 1878Newcomb Pop. Astron. iii. v. 380 A very faint nebulosity, about 3′ in diameter.
b. Nebulous state or form; matter in a nebulous condition.
1833Herschel Astron. xii. 407 A phænomenon which seems to indicate the existence of some slight degree of nebulosity about the sun itself. 1865Bristow tr. Figuier's World bef. Deluge xix. (1869) 464 We have seen the globe floating in space in a state of gaseous nebulosity. 1898Pop. Sci. Monthly LIII. 410 The molecules of which the primitive nebulosity of the universe was composed.
fig.1881T. Hardy Laodicean iii. i, He had been a mere nebulosity whom she had never distinctly outlined.
2. Cloudiness; indistinctness.
1809Jebb Corr. w. Knox (1834) I. 522 Eternal misconceptions, misrepresentations, nebulosities and logomachies. 1848Jrnl. R. Agric. Soc. IX. ii. 326 Delicate appreciation of degrees of nebulosity. 1876Trans. Vict. Inst. 30 That dim nebulosity in which they are too often enveloped. |