exogeneticadj.
/ˌɛksəʊdʒɪˈnɛtɪk/ Having an external cause or origin.
1. Medicine. Of a disease: having a cause outside the body.
ΘΚΠ
the world > health and disease > ill health > a disease > production of disease > [adjective] > from external cause
procatarctic1603
exogenetic1874
exogenous1883
heterochthonous1891
exogenic1900
xenogenous1901
1874 Dunglison's Med. Lexicon (rev. ed.) Exogenetic, having an origin from external causes, as exogenetic diseases.
2. Geology.
a. Of rock: produced by the action of forces external to the material from which it was formed.
ΘΚΠ
the world > the earth > structure of the earth > structural features > [adjective] > exogenetic
exogenetic1904
1904 A. W. Grabau in Amer. Geologist Apr. 229 Contrasted with this group is that of the clastic rocks... These owe their origin chiefly to agents acting from without, and hence may be termed exogenetic.
1957 F. J. Pettijohn Sedimentary Rocks (ed. 2) i. 4 It is desirable to discuss the textures of the exogenetic (clastic) rocks, the endogenetic (chemical) rocks, and the epigenetic (diagenetic) rocks separately.
b. Of rock or processes affecting rocks and landforms: formed or occurring at the surface of the earth.
ΘΚΠ
the world > the earth > structure of the earth > structural features > [adjective] > surface or top-set
exogenous1845
exogenetic1914
exogenic1942
non-penetrative1976
the world > the earth > structure of the earth > formation of features > [adjective] > manner
undigenous1799
exogenous1845
monogenetic1873
polygenetic1873
exogenetic1914
exogenic1942
palaeogeomorphic1945
1914 T. Crook in Mineral. Mag. 17 72 The terms ‘endogene’ and ‘exogene’ have long been used by German and French geologists, chiefly as the equivalents of ‘eruptive’ and ‘sedimentary’... It seems permissible to use them as here required, in the forms endogenetic and exogenetic.
1914 T. Crook in Mineral. Mag. 17 73 Exogenetic processes are best subdivided..with reference to..weathering and denudation... Exogenetic rocks..are formed at ordinary or comparatively low tempertures.
1937 S. W. Wooldridge & R. S. Morgan Physical Basis Geogr. v. 54 Exogenetic forces co-operate in all cases with the forces of upheaval.
1961 L. D. Stamp Gloss. Geogr. Terms 184/1 Exogenetic is the usual English form, Exogenic..the American.
1970 H. H. Read Rutley's Elem. Mineral. (ed. 26) i. v. 212 Exogenetic deposits are due to surface-processes such as deposition in a salt-lake or sorting by river-action.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2019).
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adj.1874