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tropicalize
tropicbird
tropine
tropism
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tropology
tropomyosin
troponin
tropopause
troposphere
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tropopause

tro·po·pause [ trṓpə pàwz, tróppə pàwz ]


noun 
Definition:
 
boundary between troposphere and stratosphere: the transitional region of the atmosphere between the troposphere and stratosphere, 16 km (10 mi) above the equator and 9 km (6 mi) above polar regions

[Early 20th century. Blend of troposphere + pause]
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