1. The lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)

Derived forms: tropospheres

Type of: layer

Part of: atmosphere

Encyclopedia: Troposphere

• all in all
• all of a sudden
• all right
• All Saints' Day
• All Souls' Day
• all the best
• all the rage
• all the same
• all the time
• all the way
• all together
• all told
• all too
• all-American
• all-candidates meeting
• all-comers
• all-day sucker
• all-devouring
• all-dressed
• all-embracing
• all-encompassing
• all-fired
• all-important
• all-in wrestling
• all-inclusive