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chemoprophylaxis
chemoprotective
chemoradiotherapy
chemoreception
chemoreceptor
chemosensory
chemosis
chemosorb
chemosphere
chemostat
chemosterilant
chemosurgery
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chemosphere
che·mo·sphere [ kmə sfr ]


noun 
Definition:
 
region of Earth's atmosphere: a variable region of the atmosphere, approximately 30 to 190 km (20 to 120 mi) above the Earth's surface, where photochemical reactions take place

che·mo·spher·ic [ kmə sférrik ] adjective
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