syngeneticadj.
/sɪndʒɪˈnɛtɪk/ 1. Biology. Of or pertaining to syngenesis.
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the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [adjective] > sexual
sexual1794
gamic1858
gamogenetic1858
syngenetic1864
digenous1884
sexuparous1899
androgenetic1903
gynogenetic1925
1864 Lewes Aristotle xvii. 351 The Syngenetic theory—which makes both parents equally progenitors.
2. Geology. Applied to mineral deposits formed at the same time as the enclosing rocks; characterized by or pertaining to a formation contemporaneous with the enclosing or surrounding rock.
ΘΚΠ
the world > the earth > structure of the earth > structural features > [adjective] > relative time
remanié1860
subsequent1889
penecontemporaneous1901
syngenetic1905
juvenile1907
palimpsest1912
diachronous1926
palaeotectonic1947
1905 J. Geikie Struct. & Field Geol. xvi. 225 Ore-formations may be grouped under these two main divisions:—1. Syngenetic or Contemporaneous, and 2. Epigenetic or Subsequent... Syngenetic ore-formations..are formations of the same age..as the rocks in which they occur.
1914 Min. Mag. XVII. 72 ‘Epigenetic’..still is used antithetically to the term ‘syngenetic’ by writers on ore deposits, to describe a deposit the age of which is subsequent to that of the rocks in which it occurs.
1962 Geografiska Annaler XLIV. 382/2 The ice-wedges..are clearly ‘syngenetic’..i.e. the frost cracks have extended upwards successively as new sediments were deposited on top.
1971 Nature 12 Mar. 108/2 It remains to be seen whether the small amounts of racemic amino-acids were syngenetic with the meteorite parent body or were synthesized later.
1978 S. S. Peng Coal Mine Ground Control v. 117 Syngenetic anisotropy originates during the formation processes of rock materials. Bedding planes and preferred alignment of pores or mineral grains are examples.
Derivatives
syngeˈnetically adv.
ΘΚΠ
the world > the earth > structure of the earth > structural features > [adverb] > relative time
penecontemporaneously1933
syngenetically1951
the world > health and disease > healing > medical treatment > surgery > transplanting and grafting operations > [adverb] > of same inbred strain
syngenetically1951
1951 Bull. Amer. Assoc. Petroleum Geologists 35 2226 Apparently the oölites of hematite formed both syngenetically and epigenetically.
1978 Nature 19 Oct. 641/1 The Brioverian unicells and colonies are bona fide Precambrian fossils:..they were deposited syngenetically with Precambrian sedimentation.
This entry has not yet been fully updated (first published 1919; most recently modified version published online June 2018).
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adj.1864