aphoticadj.
/əˈfəʊtɪk/ Not reached by sunlight (cf. photic adj.).
ΘΚΠ
the world > the earth > water > sea or ocean > region of sea or ocean > [adjective] > not reached by sunlight
aphotic1903
1903 W. R. Fisher tr. A. F. W. Schimper Plant-geogr. iii. v. i. 782 The aphotic or dark region, in which only non-assimilating organisms can exist.
1913 J. Murray Ocean vii. 137 The Aphotic or Deep-Sea Zone extends from the lower limit of the photic zone down to the bottom of the greatest ‘deeps’.
1928 E. Neaverson Stratigr. Palaeontol. iv. 97 Two general light-regions recognised by oceanographers are based on the distribution of plants: the photic region..and the aphotic region, where the light is insufficient for this process [sc. photosynthesis] to be carried on.
This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2018).
<
adj.1903- succiniferous
- succinimidate
- succinimide
- succinite
- succino
- succino-
- succino-sulphuric acid
- succinol
- succinonitrile
- succinoresinol
- succinosulphuric acid
- succinous
- succinum
- succinyl
- succinylcholine
- succinylcholines
- suffragation
- suffragator
- suffragatory
- suffrage
- suffrage of prayer
- suffrage of prayers
- suffraged
- suffrager
- suffrages