pondingn.

Brit.

/ˈpɒndɪŋ/, U.S.

/ˈpɑndɪŋ/

Origin: Formed within English, by derivation. Etymons: pond v., -ing suffix¹.

Etymology: < pond v. + -ing suffix¹.

1. The action of pond v. Also with up, back.

ΘΚΠ

the world > the earth > water > lake > pool > [noun] > artificially confined water > impounding of water

impoundment1664

ponding1673

pounding1791

pondage1841

the world > physical sensation > cleanness and dirtiness > sanitation > provision of sewers > sewage treatment > [noun] > blockage of filter

ponding1673

1673 in H. M. Burt First Cent. Hist. Springfield (1899) II. 119 Provided it be not prejudiciall to the high way nor to any mans propriety by ponding up of water.

1694 in H. M. Burt First Cent. Hist. Springfield (1899) II. 283 [He] did desire..the stream of Pacowseek Brooke to set a Saw mil on, and the Low land for ponding.

1796 Coll. Papers Bilious Fevers 103 The ponding of water, by running a bulk-head athwart a dock..to be filled up with every species of filth and putridity.

1830 C. Lyell Princ. Geol. I. 291 The ponding back..of this great body of fresh-water.

1857 J. Ruskin Elements Drawing i. 35 The use of turning the paper upside down is to neutralise the increase of darkness towards the bottom of the squares, which would otherwise take place from the ponding of the colour.

1877 G. K. Gilbert Rep. Geol. Henry Mts. (U.S. Geogr. & Geol. Surv. Rocky Mt. Region) 126 The smaller [streams] are turned back by ponding, and are usually diverted so as to join the larger.

1925 J. F. Hylan Seven Years Progress 174 There has been authorized in that section one other trunk sewer, at an estimated cost of $161,000, to eliminate the objectionable conditions due to ponding of rain water at the Foley Avenue tunnel of the Long Island Railroad.

1957 G. E. Hutchinson Treat. Limnol. I. i. 24 After the ponding of Lake Kivu by volcanic action.

1990 J. Stewart & H. Tiessen in C. Mungall & D. McLaren Planet under Stress (1991) 199 During the rainy season intense rains..cause extensive run-off and ponding.

2. The accumulation of liquid above a filter as a result of its becoming blocked.

ΚΠ

1939 L. B. Escritt Sewerage Engin. vii. 133 Excessive flows..are often the cause of ‘ponding’ of the filters.

1953 E. W. Steel Water Supply & Sewerage (ed. 3) xxiv. 488 Media of small size will furnish more surface, but unloading will be less complete and ponding on the surface [of the filters] is more likely.

1971 T. H. Y. Tebbutt Princ. Water Quality Control xii. 122 When the first filter shows signs of ponding the direction of flow..is reversed.

1993 Water Quality (B.S.I.) §1.3 4/1 Ponding, the occurrence of pools of liquid on a biological filter caused by blockage of its interstices.

This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	ponding
释义	pondingn. Brit. /ˈpɒndɪŋ/, U.S. /ˈpɑndɪŋ/ Origin: Formed within English, by derivation. Etymons: pond v., -ing suffix¹. Etymology: < pond v. + -ing suffix¹. 1. The action of pond v. Also with up, back. ΘΚΠ the world > the earth > water > lake > pool > [noun] > artificially confined water > impounding of water impoundment1664 ponding1673 pounding1791 pondage1841 the world > physical sensation > cleanness and dirtiness > sanitation > provision of sewers > sewage treatment > [noun] > blockage of filter ponding1673 1673 in H. M. Burt First Cent. Hist. Springfield (1899) II. 119 Provided it be not prejudiciall to the high way nor to any mans propriety by ponding up of water. 1694 in H. M. Burt First Cent. Hist. Springfield (1899) II. 283 [He] did desire..the stream of Pacowseek Brooke to set a Saw mil on, and the Low land for ponding. 1796 Coll. Papers Bilious Fevers 103 The ponding of water, by running a bulk-head athwart a dock..to be filled up with every species of filth and putridity. 1830 C. Lyell Princ. Geol. I. 291 The ponding back..of this great body of fresh-water. 1857 J. Ruskin Elements Drawing i. 35 The use of turning the paper upside down is to neutralise the increase of darkness towards the bottom of the squares, which would otherwise take place from the ponding of the colour. 1877 G. K. Gilbert Rep. Geol. Henry Mts. (U.S. Geogr. & Geol. Surv. Rocky Mt. Region) 126 The smaller [streams] are turned back by ponding, and are usually diverted so as to join the larger. 1925 J. F. Hylan Seven Years Progress 174 There has been authorized in that section one other trunk sewer, at an estimated cost of $161,000, to eliminate the objectionable conditions due to ponding of rain water at the Foley Avenue tunnel of the Long Island Railroad. 1957 G. E. Hutchinson Treat. Limnol. I. i. 24 After the ponding of Lake Kivu by volcanic action. 1990 J. Stewart & H. Tiessen in C. Mungall & D. McLaren Planet under Stress (1991) 199 During the rainy season intense rains..cause extensive run-off and ponding. 2. The accumulation of liquid above a filter as a result of its becoming blocked. ΚΠ 1939 L. B. Escritt Sewerage Engin. vii. 133 Excessive flows..are often the cause of ‘ponding’ of the filters. 1953 E. W. Steel Water Supply & Sewerage (ed. 3) xxiv. 488 Media of small size will furnish more surface, but unloading will be less complete and ponding on the surface [of the filters] is more likely. 1971 T. H. Y. Tebbutt Princ. Water Quality Control xii. 122 When the first filter shows signs of ponding the direction of flow..is reversed. 1993 Water Quality (B.S.I.) §1.3 4/1 Ponding, the occurrence of pools of liquid on a biological filter caused by blockage of its interstices. This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022). < n.1673
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