trophogenicadj.

Brit.

/ˌtrəʊfəˈdʒɛnɪk/,

/ˌtrɒfəˈdʒɛnɪk/, U.S.

/ˌtrɑfəˈdʒɛnɪk/,

/ˌtroʊfəˈdʒɛnɪk/

Origin: Formed within English, by compounding. Etymons: tropho- comb. form, -genic comb. form.

Etymology: < tropho- comb. form + -genic comb. form. In sense 1 after French trophogénique (1915 (in the passage translated in quot. 1922) or earlier), perhaps itself after German trophogen (1906 or earlier in this sense). In sense 2 after German trophogen (1910 or earlier in this sense); compare tropholytic adj. 2.

1. Entomology. Determined by or dependent upon feeding habits or diet.Used with reference to the determination of caste in social insects.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > [adjective] > arising from diet

trophogenic1922

1922 tr. A. Lameere in Ann. Rep. Board of Regents Smithsonian Inst. 1920 518 The germinative plasma of the eggs is labile, producing under the influence of various conditions of nourishment different results; the neuters would be trophogenic [Fr. le neutre serait trophogénique].

1928 W. M. Wheeler Social Insects viii. 193 The castes may be blastogenic..in some groups of social insects, and trophogenic..in others.

1980 Insectes Sociaux 27 80 The autogenic determination which separates queen and worker castes is succeeded by the larval trophogenic determination which is also at the origin of the soldiers.

2010 P. J. Gullan & P. S. Cranston Insects (ed. 4) xii. 324/1 Caste differentiation is largely trophogenic.

2. Ecology. Of a layer or zone of standing water, esp. in a lake: characterized by the production of organic nutrients and oxygen by photosynthesizing organisms; in which photosynthesis occurs. Cf. tropholytic 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

1930 Internat. Rev. d. gesamten Hydrobiol. u. Hydrographie 24 37 This calculation assumes that E, the Epilimnion, extends for 10 m. and is trophogenic throughout.

1957 G. E. Hutchinson Treat. Limnol. I. ix. 583 Oxygen, produced by photosynthesis in the trophogenic layers of the lake, and methane, produced by anaerobic decomposition in the tropholytic layers.

1979 Ecol. Modelling 6 1 (title) The modelling of ³²P kinetics within the trophogenic zone of a small lake.

2006 C. S. Reynolds Ecol. Phytoplankton viii. 391/1 The return of carbon and other inorganic elements to the trophogenic layers is extremely slow when compared to the open sea.

This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).

单词	trophogenic
释义	trophogenicadj. Brit. /ˌtrəʊfəˈdʒɛnɪk/, /ˌtrɒfəˈdʒɛnɪk/, U.S. /ˌtrɑfəˈdʒɛnɪk/, /ˌtroʊfəˈdʒɛnɪk/ Origin: Formed within English, by compounding. Etymons: tropho- comb. form, -genic comb. form. Etymology: < tropho- comb. form + -genic comb. form. In sense 1 after French trophogénique (1915 (in the passage translated in quot. 1922) or earlier), perhaps itself after German trophogen (1906 or earlier in this sense). In sense 2 after German trophogen (1910 or earlier in this sense); compare tropholytic adj. 2. 1. Entomology. Determined by or dependent upon feeding habits or diet.Used with reference to the determination of caste in social insects. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > [adjective] > arising from diet trophogenic1922 1922 tr. A. Lameere in Ann. Rep. Board of Regents Smithsonian Inst. 1920 518 The germinative plasma of the eggs is labile, producing under the influence of various conditions of nourishment different results; the neuters would be trophogenic [Fr. le neutre serait trophogénique]. 1928 W. M. Wheeler Social Insects viii. 193 The castes may be blastogenic..in some groups of social insects, and trophogenic..in others. 1980 Insectes Sociaux 27 80 The autogenic determination which separates queen and worker castes is succeeded by the larval trophogenic determination which is also at the origin of the soldiers. 2010 P. J. Gullan & P. S. Cranston Insects (ed. 4) xii. 324/1 Caste differentiation is largely trophogenic. 2. Ecology. Of a layer or zone of standing water, esp. in a lake: characterized by the production of organic nutrients and oxygen by photosynthesizing organisms; in which photosynthesis occurs. Cf. tropholytic 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 1930 Internat. Rev. d. gesamten Hydrobiol. u. Hydrographie 24 37 This calculation assumes that E, the Epilimnion, extends for 10 m. and is trophogenic throughout. 1957 G. E. Hutchinson Treat. Limnol. I. ix. 583 Oxygen, produced by photosynthesis in the trophogenic layers of the lake, and methane, produced by anaerobic decomposition in the tropholytic layers. 1979 Ecol. Modelling 6 1 (title) The modelling of ³²P kinetics within the trophogenic zone of a small lake. 2006 C. S. Reynolds Ecol. Phytoplankton viii. 391/1 The return of carbon and other inorganic elements to the trophogenic layers is extremely slow when compared to the open sea. This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022). < adj.1922
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