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单词 persorption
释义

persorptionn.

Brit. /pəˈzɔːpʃn/, /pəˈsɔːpʃn/, U.S. /pərˈzɔrpʃ(ə)n/, /pərˈsɔrpʃ(ə)n/
Origin: Formed within English, by derivation. Etymons: per- prefix, sorption n.
Etymology: < per- prefix + sorption n., after adsorption n., absorption n.
1. Physical Chemistry. Sorption in which molecules of a gas enter pores in a solid that are only a little larger than themselves.
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persorption1930
1930 J. W. McBain & G. T. Britton in Jrnl. Amer. Chem. Soc. 52 2220 The sorbed molecules of nitrogen must be so intimately surrounded by the atoms of carbon with which they are in contact that the designation ‘adsorption’, which implies a surface, becomes a misnomer. There is very little difference in such a case between adsorption and absorption; and if a precise word to describe sorption by charcoal were required, the new term ‘persorption’ might be coined.
1948 S. Glasstone Textbk. Physical Chem. (ed. 2) xiv. 1204 It is probable that persorption is operative in the highly active charcoals, and perhaps to some extent in silica gel.
1960 A. W. Adamson Physical Chem. of Surfaces xi. 523 What might be considered to be a limiting or extreme case of persorption is the formation of clathrate compounds.
1989 Fuel 68 375 The adsorption effects are highly influenced by helium persorption.
2. Physiology and Medicine. The passage of a substance through the skin or a mucous membrane; spec. the passage of intact particulate material through the gastrointestinal mucosa. Also: the excretion of such particulate material in the urine.
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1957 A. E. Light in Jrnl. Soc. Cosmetic Chemists 8 117 It became apparent that no single word yet used could describe the act of substances passing through various layers of the skin. After considering many combinations of prefixes and suffixes the word ‘persorption’ evolved to amply describe this action.
1968 G. Volkheimer & F. H. Schulz in Digestion 1 213 (title) The phenomenon of persorption.
1968 G. Volkheimer & F. H. Schulz in Digestion 1 218 Food particles suitable for persorption reach the subepithelial region via the spaces between the epithelial cells.
1976 Trans. Amer. Assoc. Genito-urinary Surgeons 68 17 Persorption is the excretion in urine of particles that have been absorbed..from the gastrointestinal tract.
1990 Mycoses 33 20 Yeasts may gain entry into the blood via routes such as intubation, intravenous catheterization or by direct persorption from the gut.
2001 Jrnl. Pharmaceut. Sci. 90 1927 Particle uptake occurred in the small intestine by persorption through single, degrading enterocytes in the process of being extruded from a villus.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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n.1930
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