- physiological atmosphere
-
ecosphere.
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Universalium. 2010.
physiological atmosphere
Look at other dictionaries:
physiological atmosphere — ecosphere … Useful english dictionary
ecosphere — /ek oh sfear , ee koh /, n. 1. Also called physiological atmosphere. the part of the atmosphere in which it is possible to breathe normally without aid: the portion of the troposphere from sea level to an altitude of about 13,000 ft. (4000 m). 2 … Universalium
biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; … Universalium
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