nepheloidadj.

Brit.

/ˈnɛfəlɔɪd/, U.S.

/ˈnɛfəˌlɔɪd/

Origin: A borrowing from Latin. Etymon: Latin nepheloides.

Etymology: < post-classical Latin nepheloides (1713 or earlier) < ancient Greek νεϕελοειδής cloudy (of urine) < νεϕέλη cloud (see nephelo- comb. form) + -οειδής -oid suffix.

†1. Medicine. Of urine: cloudy. Obsolete. rare.Apparently only attested in dictionaries or glossaries.

ΚΠ

1848 R. Dunglison Med. Lexicon (ed. 7) 575/1 Nepheloid, an epithet applied to the urine when it is cloudy.

1885 Cassell's Encycl. Dict. V. i Nepheloid, clouded; a term applied to cloudy urine.

2. Oceanography and Limnol. Of sea or lake water: turbid. Chiefly in nepheloid layer n. a layer of water, typically near the bottom, containing suspended mineral particles and organic matter.

ΘΚΠ

the world > the earth > water > sea or ocean > [adjective] > cloudy

nepheloid1965

the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > specific layers

laminarian zone1851

stratosphere1932

troposphere1932

scattering layer1942

sound channel1946

psychrosphere1956

thermosphere1956

Ekman layer1957

thermo-halocline1964

nepheloid layer1965

1965 M. Ewing & E. M. Thorndike in Science 12 Mar. 1291/1 Strong background haze in some of our ocean bottom photographs has been difficult to explain by any cause other than clouded (nepheloid) water.

1965 Science 12 Mar. 1291/2 The degree to which the water is nepheloid.

1965 Science 12 Mar. 1291/3 A sample of 200 liters obtained from the nepheloid layer was found..to contain some organisms and about 0·50 g of suspended lutite.

1972 Ettreim & Ewing in A. L. Gordon Stud. Physical Oceanogr. II. 123 The turbulence associated with the vigorous bottom currents of the western North Atlantic maintains a nepheloid layer with an average thickness of one kilometer.

1997 Limnol. & Oceanogr. 42 839/1 A region of very low transmission..in deep water farthest from shore probably was a northward intrusion of a benthic nepheloid layer that develops in western Lake Superior during summer stratification.

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

单词	nepheloid
释义	nepheloidadj. Brit. /ˈnɛfəlɔɪd/, U.S. /ˈnɛfəˌlɔɪd/ Origin: A borrowing from Latin. Etymon: Latin nepheloides. Etymology: < post-classical Latin nepheloides (1713 or earlier) < ancient Greek νεϕελοειδής cloudy (of urine) < νεϕέλη cloud (see nephelo- comb. form) + -οειδής -oid suffix. †1. Medicine. Of urine: cloudy. Obsolete. rare.Apparently only attested in dictionaries or glossaries. ΚΠ 1848 R. Dunglison Med. Lexicon (ed. 7) 575/1 Nepheloid, an epithet applied to the urine when it is cloudy. 1885 Cassell's Encycl. Dict. V. i Nepheloid, clouded; a term applied to cloudy urine. 2. Oceanography and Limnol. Of sea or lake water: turbid. Chiefly in nepheloid layer n. a layer of water, typically near the bottom, containing suspended mineral particles and organic matter. ΘΚΠ the world > the earth > water > sea or ocean > [adjective] > cloudy nepheloid1965 the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > specific layers laminarian zone1851 stratosphere1932 troposphere1932 scattering layer1942 sound channel1946 psychrosphere1956 thermosphere1956 Ekman layer1957 thermo-halocline1964 nepheloid layer1965 1965 M. Ewing & E. M. Thorndike in Science 12 Mar. 1291/1 Strong background haze in some of our ocean bottom photographs has been difficult to explain by any cause other than clouded (nepheloid) water. 1965 Science 12 Mar. 1291/2 The degree to which the water is nepheloid. 1965 Science 12 Mar. 1291/3 A sample of 200 liters obtained from the nepheloid layer was found..to contain some organisms and about 0·50 g of suspended lutite. 1972 Ettreim & Ewing in A. L. Gordon Stud. Physical Oceanogr. II. 123 The turbulence associated with the vigorous bottom currents of the western North Atlantic maintains a nepheloid layer with an average thickness of one kilometer. 1997 Limnol. & Oceanogr. 42 839/1 A region of very low transmission..in deep water farthest from shore probably was a northward intrusion of a benthic nepheloid layer that develops in western Lake Superior during summer stratification. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < adj.1848
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