eutrophicadj.n.

Brit.

/juːˈtrɒfɪk/,

/juːˈtrəʊfɪk/, U.S.

/juˈtrɑfɪk/

Etymology: < eutrophy n. + -ic suffix.

A. adj.

1. Medicine. Tending to promote nutrition.

ΚΠ

1931 R. N. Chapman Animal Ecol. xvi. 305 The eutrophic type of lake is characterized by the paucity or absence of oxygen in the bottom waters.

1947 A. D. Hasler in Ecology XXVIII. 390/1 Eleven oligotrophic and dystrophic lakes have taken on eutrophic characteristics since comparatively recent times.

1959 J. Clegg Freshwater Life Brit. Isles (ed. 2) Pl. 2 (caption) An evolved lake in which eutrophic conditions occur.

2. Of a lake, swamp, etc.: (over-)rich in organic or mineral nutrients and having as a result an excessive growth of algæ and other plants, with depletion of oxygen and consequent extinction of animal life; spec. (see quot. 1931 at sense A. 1).

ΘΚΠ

the world > the earth > water > lake > [adjective] > (rendered) eutrophic

eutrophic1959

eutrophicated1967

1959 J. Clegg Freshwater Life Brit. Isles xix. 317 Large reservoirs..exhibit all the characteristics of a typical eutrophic lake.

1970 Nature 11 Apr. 101/1 The characteristic of a eutrophic lake is the way in which the bottom layers are depleted of oxygen during the summer as organic matter sinks to the bottom and decays.

B. n.

A eutrophic medicine.

ΘΚΠ

the world > health and disease > healing > medicines or physic > medicines for specific purpose > medicines used to affect nutrition > [noun]

alterativea1398

dietic1659

alleotic1721

alterant1722

eutrophic1884

1884 New Sydenham Soc. Lexicon (at cited word) The chief eutrophics are mercurials, the preparations of iodine, bromine, etc.

Derivatives

eutrophiˈcation n. the process of becoming eutrophic.

ΚΠ

1947 A. D. Hasler in Ecology 28 383/1 Enrichment of water, be it intentional or unintentional, is called eutrophication... In this paper eutrophication will be interpreted in the broadest sense; namely, lake enrichment owing to any and all nutritive substances.

1947 A. D. Hasler in Ecology 28 390/1 Eleven oligotrophic and dystrophic lakes have taken on eutrophic characteristics since comparatively recent times. Most rapid eutrophication has taken place in regions where there are deposits of postglacial clay;..the process has been accelerated by ‘cultural influences’ such as effluents from flax retting plants,..barnyards, fertile soil, urban settlements.

1967 Technol. Week 23 Jan. 70/3 Lake Erie's eutrophication.

1968 Observer 17 Nov. 9/4 Decaying plant matter consumes all the oxygen in the water, which becomes lifeless... This process of ‘eutrophication’ (or over-fertilisation) has overtaken at least 40 lakes in Britain and the US.

1970 Motor Boat & Yachting 16 Oct. 25/1 Eutrophication (dense growth of weed) tends to occur in enclosed areas of water.

This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022).

单词	eutrophic
释义	eutrophicadj.n. Brit. /juːˈtrɒfɪk/, /juːˈtrəʊfɪk/, U.S. /juˈtrɑfɪk/ Etymology: < eutrophy n. + -ic suffix. A. adj. 1. Medicine. Tending to promote nutrition. ΚΠ 1931 R. N. Chapman Animal Ecol. xvi. 305 The eutrophic type of lake is characterized by the paucity or absence of oxygen in the bottom waters. 1947 A. D. Hasler in Ecology XXVIII. 390/1 Eleven oligotrophic and dystrophic lakes have taken on eutrophic characteristics since comparatively recent times. 1959 J. Clegg Freshwater Life Brit. Isles (ed. 2) Pl. 2 (caption) An evolved lake in which eutrophic conditions occur. 2. Of a lake, swamp, etc.: (over-)rich in organic or mineral nutrients and having as a result an excessive growth of algæ and other plants, with depletion of oxygen and consequent extinction of animal life; spec. (see quot. 1931 at sense A. 1). ΘΚΠ the world > the earth > water > lake > [adjective] > (rendered) eutrophic eutrophic1959 eutrophicated1967 1959 J. Clegg Freshwater Life Brit. Isles xix. 317 Large reservoirs..exhibit all the characteristics of a typical eutrophic lake. 1970 Nature 11 Apr. 101/1 The characteristic of a eutrophic lake is the way in which the bottom layers are depleted of oxygen during the summer as organic matter sinks to the bottom and decays. B. n. A eutrophic medicine. ΘΚΠ the world > health and disease > healing > medicines or physic > medicines for specific purpose > medicines used to affect nutrition > [noun] alterativea1398 dietic1659 alleotic1721 alterant1722 eutrophic1884 1884 New Sydenham Soc. Lexicon (at cited word) The chief eutrophics are mercurials, the preparations of iodine, bromine, etc. Derivatives eutrophiˈcation n. the process of becoming eutrophic. ΚΠ 1947 A. D. Hasler in Ecology 28 383/1 Enrichment of water, be it intentional or unintentional, is called eutrophication... In this paper eutrophication will be interpreted in the broadest sense; namely, lake enrichment owing to any and all nutritive substances. 1947 A. D. Hasler in Ecology 28 390/1 Eleven oligotrophic and dystrophic lakes have taken on eutrophic characteristics since comparatively recent times. Most rapid eutrophication has taken place in regions where there are deposits of postglacial clay;..the process has been accelerated by ‘cultural influences’ such as effluents from flax retting plants,..barnyards, fertile soil, urban settlements. 1967 Technol. Week 23 Jan. 70/3 Lake Erie's eutrophication. 1968 Observer 17 Nov. 9/4 Decaying plant matter consumes all the oxygen in the water, which becomes lifeless... This process of ‘eutrophication’ (or over-fertilisation) has overtaken at least 40 lakes in Britain and the US. 1970 Motor Boat & Yachting 16 Oct. 25/1 Eutrophication (dense growth of weed) tends to occur in enclosed areas of water. This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022). < adj.n.1884
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