condensingadj.

Etymology: Previous versions of the OED give the stress as: conˈdensing.

That condenses.

a. Chiefly in names of machines, mechanical apparatus, etc., forming virtual compounds (sometimes hyphenated), in which it blends with the verbal noun used attributive (= ‘for condensing’), as condensing coil, condensing glass, condensing lens, condensing pan, condensing syringe, condensing valve.

ΚΠ

1787 G. Adams Ess. Microscope 84 There is also a condensing glass to the stage.

1787 G. Adams Ess. Microscope 84 The tube with the condensing lense.

?1790 J. Imison School of Arts (ed. 2) 189 The valve that admits the steam from the..cylinder into the condenser, called the condensing valve.

1815 J. Smith Panorama Sci. & Art II. 25 The condensing syringe.

1835 A. Ure Philos. Manuf. 349 A little tributary stream of the Mersey..supplies the condensing power to his steam-engines.

1865 Wansbrough Brit. Patent 1545 Condensing pans employed in the condensation of milk.

1874 E. H. Knight Pract. Dict. Mech. Condensing-lens, a plano-convex..or double convex lens, to concentrate rays upon an opaque microscopic object.

b. condensing engine n. †(a) an apparatus for condensing air, or compressing it into smaller space (obsolete); (b) a steam-engine in which the steam is condensed in a condenser n. (sense 4b), or (formerly, as in Newcomen's engine) by injection of water into the cylinder.

ΘΚΠ

the world > matter > gas > air > [noun] > air-pressure > compressed or confined air > device for compressing

condenser1728

condensing engine1753

air condenser1815

air compressor1837

air-compressor1874

1753 J. Smeaton in Philos. Trans. 1751–2 (Royal Soc.) 47 422 Making this air-pump act as a condensing engine at pleasure.

1807 C. Hutton Course Math. (ed. 5) II. 239 The Condensing Engine, by which air may be condensed to any degree, instead of rarefied as in the air-pump.

1824 ‘R. Stuart’ Descr. Hist. Steam Engine The power of the condensing Engine is..known by ascertaining the temperature of the steam, which moves the piston, the area of the piston, and the temperature of the vapour which remains.

1874 E. H. Knight Pract. Dict. Mech. Condensing-engine, one in which the steam below or in advance of the piston is condensed.

2. intransitive. Growing dense, thickening (like a dense cloud, etc.). rare.

ΘΚΠ

the world > the earth > weather and the atmosphere > weather > bad weather > [adjective] > stormy > thickening (of a storm)

condensing1749

1749 S. Johnson Irene ii. iv. 22 Like the dread Stillness of condensing Storms.

This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2021).

单词	condensing
释义	condensingadj. Etymology: Previous versions of the OED give the stress as: conˈdensing. That condenses. 1. a. Chiefly in names of machines, mechanical apparatus, etc., forming virtual compounds (sometimes hyphenated), in which it blends with the verbal noun used attributive (= ‘for condensing’), as condensing coil, condensing glass, condensing lens, condensing pan, condensing syringe, condensing valve. ΚΠ 1787 G. Adams Ess. Microscope 84 There is also a condensing glass to the stage. 1787 G. Adams Ess. Microscope 84 The tube with the condensing lense. ?1790 J. Imison School of Arts (ed. 2) 189 The valve that admits the steam from the..cylinder into the condenser, called the condensing valve. 1815 J. Smith Panorama Sci. & Art II. 25 The condensing syringe. 1835 A. Ure Philos. Manuf. 349 A little tributary stream of the Mersey..supplies the condensing power to his steam-engines. 1865 Wansbrough Brit. Patent 1545 Condensing pans employed in the condensation of milk. 1874 E. H. Knight Pract. Dict. Mech. Condensing-lens, a plano-convex..or double convex lens, to concentrate rays upon an opaque microscopic object. b. condensing engine n. †(a) an apparatus for condensing air, or compressing it into smaller space (obsolete); (b) a steam-engine in which the steam is condensed in a condenser n. (sense 4b), or (formerly, as in Newcomen's engine) by injection of water into the cylinder. ΘΚΠ the world > matter > gas > air > [noun] > air-pressure > compressed or confined air > device for compressing condenser1728 condensing engine1753 air condenser1815 air compressor1837 air-compressor1874 1753 J. Smeaton in Philos. Trans. 1751–2 (Royal Soc.) 47 422 Making this air-pump act as a condensing engine at pleasure. 1807 C. Hutton Course Math. (ed. 5) II. 239 The Condensing Engine, by which air may be condensed to any degree, instead of rarefied as in the air-pump. 1824 ‘R. Stuart’ Descr. Hist. Steam Engine The power of the condensing Engine is..known by ascertaining the temperature of the steam, which moves the piston, the area of the piston, and the temperature of the vapour which remains. 1874 E. H. Knight Pract. Dict. Mech. Condensing-engine, one in which the steam below or in advance of the piston is condensed. 2. intransitive. Growing dense, thickening (like a dense cloud, etc.). rare. ΘΚΠ the world > the earth > weather and the atmosphere > weather > bad weather > [adjective] > stormy > thickening (of a storm) condensing1749 1749 S. Johnson Irene ii. iv. 22 Like the dread Stillness of condensing Storms. This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2021). < adj.1749
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