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单词 rarefying
释义

rarefyingn.

Brit. /ˈrɛːrᵻfʌɪɪŋ/, U.S. /ˈrɛrəˌfaɪɪŋ/
Forms: see rarefy v. and -ing suffix1.
Origin: Formed within English, by derivation. Etymons: rarefy v., -ing suffix1.
Etymology: < rarefy v. + -ing suffix1. Compare slightly earlier rarefaction n.
The action of rarefy v.; an instance of this; rarefaction.
ΚΠ
1583 P. Barrough Methode of Phisicke v. xxii. 251 Wee make perfect..the raryfying of the thicke bodie.
a1660 H. Hammond Serm. (1664) xii. 196 This rarifying and purifying of the fancy.
1672 I. Newton in Philos. Trans. (Royal Soc.) 7 5090 He would have it explicated..by the Splitting and Rarefying of æthereal pulses.
1725 T. Morgan Philos. Princ. Med. 286 It may occasionally and consequentially..produce the different and contrary Effects of heating and cooling, rarefying and condensing.
1805 W. Irvine Ess. ii. iv. 241 From this it is evident that rarefying of air containing vapour disposes the moisture to separate.
1899 Amer. Jrnl. Theol. 3 481 Such a rarifying of our conception of personality to that of pure tendency is not a de-personifying of God.
1910 R. Ferris How it Flies xiii. 265 It was the rarefying of the air by heating that caused their balloon to rise.
1923 H. S. Gorman Procession of Masks vi. 118 His gradual education to the new order of things, the rarifying of his spirit, is carried on in a tender, lucid manner.
1997 L. Marx Crystals out of Chaos 161 Taylor's terminology suggests links between a specifically eighteenth-century conception of analyzing and classifying the world..and the postmodern rarefying of the world as image.
2004 H. Planel Space & Life vi. 54 Parathyroid hormone..when administered in large quantities, causes the appearance of numerous osteoclasts and a rarefying of bone trabeculae while the urinary excretion of calcium increases.
This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).

rarefyingadj.

Brit. /ˈrɛːrᵻfʌɪɪŋ/, U.S. /ˈrɛrəˌfaɪɪŋ/
Forms: see rarefy v. and -ing suffix2.
Origin: Formed within English, by derivation. Etymons: rarefy v., -ing suffix2.
Etymology: < rarefy v. + -ing suffix2. Compare earlier rarefactive adj.
Causing rarefaction; rarefactive.
ΚΠ
1615 G. Sandys Relation of Journey 209 Lofty bordering mountaines..which depriue it of the rarifying Sunne for no small part of the day.
1649 H. Hammond Christians Obligations iii. 73 This rarifying power of flames, and judgments.
1727 S. Hales Veg. Staticks 138 Its rarifying power then ceasing, the greatly rarified sap, and air mixt with it, will condense.
1744 G. Berkeley Siris (ESTC T72826) §170 Such is the rarefying and expansive force of this element [sc. fire].
1797 Philos. Trans. (Royal Soc.) 87 142 Cuthbertson's last improved air pump, of the greatest rarefying power.
1898 T. C. Allbutt Syst. Med. V. 9 The common atrophic rarefying emphysema.
1944 Amer. Jrnl. Surg. 66 128/1 Those experienced in the surgery of bone have from time to time encountered rarifying and sclerotic lesions..which clinically were the seat of pain.
1965 Amer. Math. Monthly Feb. 85 The extreme manifestation of a rarefying process is the production of a cavity. Thus, for example, if a piston is withdrawn from a cylinder of gas more rapidly than the ‘escape speed’, the gas is unable to follow.
1999 Operative Techniques Neurosurg. 2 89/1 Ossifying or rarefying lesions can be readily identified.
This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).
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n.1583adj.1615
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