Friday, 14 December 2012

troposphere=التروبوسفير


troposphere=التروبوسفير
ONLINE ETYMOLOGY DICTIONARY:
troposphere (n.)
1914, from Fr. troposphère, lit. "sphere of change," coined by French meteorologist Philippe Teisserenc de Bort (1855-1913) from Gk. tropos "a turn, change" (see trope) + sphaira "sphere" (see sphere).
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