mud-linen.

Brit.

/ˈmʌdlʌɪn/, U.S.

/ˈmədˌlaɪn/

Origin: Formed within English, by compounding. Etymons: mud n.¹, line n.²

Etymology: < mud n.¹ + line n.²

1. The limit of wave action on a coastal seabed below which mud will settle permanently on the bottom.

ΘΚΠ

the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > sea bed > mud-line

mud-line1891

1891 Rep. Sci. Results Voy. H.M.S. Challenger: Deep-sea Deposits iii. 185 The greater the extent and depth of the ocean, the greater the depth to which water-movement extends, and consequently the greater is the depth at which the mud-line is formed around the coasts.

1946 H. Woods Palæontol. Invertebr. (ed. 8) 296 At a depth of about 100 fathoms..the finer terrigenous materials are deposited, forming what is known as the ‘mud-line’—a rich feeding ground for animals.

1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation xi. 226 The maximum amounts of organic matter occur in calm waters, either in estuaries (5–15%) or near the edge of the belt of mud which surrounds the land mass, the ‘mud line’, where the amount is 6%.

1993 Palaios 8 439 The prominent Foraminiferal boundary between 170 and 200 m is associated with the position of the mudline in the northwest Gulf.

2. Oil Industry. A pipeline carrying drilling mud.

ΘΚΠ

society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > pipe-line > types of

oleoduct1886

riser pipe1886

trunk line1896

big inch1947

mud-line1974

1974 U.S. Patent 3,804,556 1/2 The cylinder which has just filled with mud becomes aligned with the mud line to shore and it begins its exhaust stroke.

1991 Offshore Engineer Sept. 22/3 The reflected signals from both pipe and mudline are detected by video camera.

1993 Roustabout Aug. 30 (advt.) Retsco has introduced the 3″Type C Flanged Body Relief Valve in response to Oil industry request to move away from the use of pipe threads in the high pressure mud line systems on board rigs around the world.

3. A line of sediment flowing in a river after disturbance of the bottom.

ΚΠ

1991 Alabama Game & Fish Mar. 42/3 Rain and assorted climatic disturbances have stirred the water. A discernible mud line flows into the body of the lake from the feeder streams.

1994 Outdoor Canada May 33/2 Mudlines that spread from the mouth of a swollen river after heavy rains or along the shoreline due to pounding winds may look like the last place you'd find active fish.

This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).

单词	mud-line
释义	mud-linen. Brit. /ˈmʌdlʌɪn/, U.S. /ˈmədˌlaɪn/ Origin: Formed within English, by compounding. Etymons: mud n.¹, line n.² Etymology: < mud n.¹ + line n.² 1. The limit of wave action on a coastal seabed below which mud will settle permanently on the bottom. ΘΚΠ the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > sea bed > mud-line mud-line1891 1891 Rep. Sci. Results Voy. H.M.S. Challenger: Deep-sea Deposits iii. 185 The greater the extent and depth of the ocean, the greater the depth to which water-movement extends, and consequently the greater is the depth at which the mud-line is formed around the coasts. 1946 H. Woods Palæontol. Invertebr. (ed. 8) 296 At a depth of about 100 fathoms..the finer terrigenous materials are deposited, forming what is known as the ‘mud-line’—a rich feeding ground for animals. 1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation xi. 226 The maximum amounts of organic matter occur in calm waters, either in estuaries (5–15%) or near the edge of the belt of mud which surrounds the land mass, the ‘mud line’, where the amount is 6%. 1993 Palaios 8 439 The prominent Foraminiferal boundary between 170 and 200 m is associated with the position of the mudline in the northwest Gulf. 2. Oil Industry. A pipeline carrying drilling mud. ΘΚΠ society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > pipe-line > types of oleoduct1886 riser pipe1886 trunk line1896 big inch1947 mud-line1974 1974 U.S. Patent 3,804,556 1/2 The cylinder which has just filled with mud becomes aligned with the mud line to shore and it begins its exhaust stroke. 1991 Offshore Engineer Sept. 22/3 The reflected signals from both pipe and mudline are detected by video camera. 1993 Roustabout Aug. 30 (advt.) Retsco has introduced the 3″Type C Flanged Body Relief Valve in response to Oil industry request to move away from the use of pipe threads in the high pressure mud line systems on board rigs around the world. 3. A line of sediment flowing in a river after disturbance of the bottom. ΚΠ 1991 Alabama Game & Fish Mar. 42/3 Rain and assorted climatic disturbances have stirred the water. A discernible mud line flows into the body of the lake from the feeder streams. 1994 Outdoor Canada May 33/2 Mudlines that spread from the mouth of a swollen river after heavy rains or along the shoreline due to pounding winds may look like the last place you'd find active fish. This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022). < n.1891
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