Tuesday, 25 December 2012

epinephrine=الإيبينيفرين


epinephrine=الإيبينيفرين

ONLINE ETYMOLOGY DICTIONARY


epinephrine (n.)
1883, from epi- "upon" + Gk. nephros "kidney" (see nephron) + chemical suffix -ine (2). So called because the adrenal glands are on the kidneys.
epi-
word-forming element meaning "on, upon, above," also "in addition to; toward, among," from Greek epi "upon, at, close upon (in space or time), on the occasion of, in addition," from PIE *epi, *opi "near, at, against" (cf. Sanskrit api "also, besides;" Avestan aipi "also, to, toward;" Armenian ev "also, and;" Latin ob "toward, against, in the way of;" Oscan op, Greek opi- "behind;" Hittite appizzis "younger;" Lithuanian ap- "about, near;" Old Church Slavonic ob "on"). Before unaspirated vowels, reduced to ep-; before aspirated vowels, eph-. A productive prefix in Greek; also used in modern scientific compounds (e.g. epicenter).
nephron (n.)
1932, from Ger. nephron (1924), from Gk. nephros "kidney," from PIE *negwhro- "kidney" (cf. L. nefrones, O.N. nyra, Du. nier, Ger. Niere "kidney").

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