oligotrophicadj.

Brit.

/ˌɒlᵻɡəˈtrɒfɪk/,

/ˌɒlᵻɡəˈtrəʊfɪk/, U.S.

/ˌɑləɡoʊˈtrɑfɪk/,

/ˌɑləɡoʊˈtroʊfɪk/,

/ˌoʊləɡoʊˈtrɑfɪk/,

/ˌoʊləɡoʊˈtroʊfɪk/

Forms: 1600s oligotrophick, 1900s– oligotrophic.

Origin: Formed within English, by compounding. Etymons: oligo- comb. form, -trophic comb. form.

Etymology: < oligo- comb. form + -trophic comb. form. In sense 1 after ancient Greek ὀλιγότροϕος giving little nourishment. In sense 2 after German oligotroph, adjective (C. A. Weber 1907, in Beiblatt zu den Bot. Jahrb. 90 27).

†1. Providing little nourishment. Cf. polytrophic adj. 1. Obsolete. rare.

ΘΚΠ

the world > food and drink > food > qualities of food > [adjective] > nourishing > not

mistrum?c1225

leanc1325

weak1382

hungry1561

excremental1576

unnourishable1590

low1603

excrementitial1620

heartless1620

excrementitious1623

inalimental1626

sustenanceless1630

lifeless1633

excrementious1636

oligotrophic1659

meagre1663

unnutritive1700

innutritious1796

unnutritious1821

innutrient1822

unalimentary1822

unnourishing1826

innutritive1844

foodless1916

1659 R. Lovell Παμβοτανολογια 641 Oligotrophick, see Nourishing little.

2. Ecology. Esp. of a lake or wetland: relatively poor in plant nutrients. Cf. oligotropic adj.²

ΘΚΠ

the world > life > biology > balance of nature > environment or habitat > [adjective] > conditions of

waterish1579

supralittoral1839

trophic1902

thermostabile1908

oligotrophic1911

saprobic1913

mosaic1919

mesic1926

xeric1926

trophogenic1930

tropholytic1931

saprobiotic1940

oligotropic1948

saprotrophic1948

mixohaline1959

thermoneutral1961

eutrophicated1967

1911 A. G. Tansley Types Brit. Vegetation ix. 212 Weber distinguishes the ‘eutrophic peat’ (fen peat) of the earlier stages of such a succession from the ‘oligotrophic peat’ (moor peat) of the later stages.

1931 R. N. Chapman Animal Ecol. xvi. 304 The oligotrophic type of lake is rich in oxygen even to the bottom.

1973 Limnol. & Oceanogr. 18 145/2 Filtration can be omitted only if the concentration of algae is extremely low, as in oligotrophic lakes.

2002 Freshwater Biol. 47 941 Lago Maggiore is a deep subalpine lake that has regained its previous oligotrophic state during the last decade.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	oligotrophic
释义	oligotrophicadj. Brit. /ˌɒlᵻɡəˈtrɒfɪk/, /ˌɒlᵻɡəˈtrəʊfɪk/, U.S. /ˌɑləɡoʊˈtrɑfɪk/, /ˌɑləɡoʊˈtroʊfɪk/, /ˌoʊləɡoʊˈtrɑfɪk/, /ˌoʊləɡoʊˈtroʊfɪk/ Forms: 1600s oligotrophick, 1900s– oligotrophic. Origin: Formed within English, by compounding. Etymons: oligo- comb. form, -trophic comb. form. Etymology: < oligo- comb. form + -trophic comb. form. In sense 1 after ancient Greek ὀλιγότροϕος giving little nourishment. In sense 2 after German oligotroph, adjective (C. A. Weber 1907, in Beiblatt zu den Bot. Jahrb. 90 27). †1. Providing little nourishment. Cf. polytrophic adj. 1. Obsolete. rare. ΘΚΠ the world > food and drink > food > qualities of food > [adjective] > nourishing > not mistrum?c1225 leanc1325 weak1382 hungry1561 excremental1576 unnourishable1590 low1603 excrementitial1620 heartless1620 excrementitious1623 inalimental1626 sustenanceless1630 lifeless1633 excrementious1636 oligotrophic1659 meagre1663 unnutritive1700 innutritious1796 unnutritious1821 innutrient1822 unalimentary1822 unnourishing1826 innutritive1844 foodless1916 1659 R. Lovell Παμβοτανολογια 641 Oligotrophick, see Nourishing little. 2. Ecology. Esp. of a lake or wetland: relatively poor in plant nutrients. Cf. oligotropic adj.² ΘΚΠ the world > life > biology > balance of nature > environment or habitat > [adjective] > conditions of waterish1579 supralittoral1839 trophic1902 thermostabile1908 oligotrophic1911 saprobic1913 mosaic1919 mesic1926 xeric1926 trophogenic1930 tropholytic1931 saprobiotic1940 oligotropic1948 saprotrophic1948 mixohaline1959 thermoneutral1961 eutrophicated1967 1911 A. G. Tansley Types Brit. Vegetation ix. 212 Weber distinguishes the ‘eutrophic peat’ (fen peat) of the earlier stages of such a succession from the ‘oligotrophic peat’ (moor peat) of the later stages. 1931 R. N. Chapman Animal Ecol. xvi. 304 The oligotrophic type of lake is rich in oxygen even to the bottom. 1973 Limnol. & Oceanogr. 18 145/2 Filtration can be omitted only if the concentration of algae is extremely low, as in oligotrophic lakes. 2002 Freshwater Biol. 47 941 Lago Maggiore is a deep subalpine lake that has regained its previous oligotrophic state during the last decade. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.1659
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