Definition of 'air mass'
Example sentences containing 'air mass'
The coming week has a chilly outlook as we will be influenced at times by a much colder air mass to the east of us.Times, Sunday Times (2011)
But despite these extreme conditions, the warm and cold air masses balance each other and make little difference to overall global temperatures.Times, Sunday Times (2012)
In fact, across the northern hemisphere the cold and warm air masses are roughly balancing each other out, as they did last winter.Times, Sunday Times (2010)
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Definition of air mass from the Collins English Dictionary