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|Noun||1.||smogginess - air pollution by a mixture of smoke and fog|
portmanteau, portmanteau word, blend - a new word formed by joining two others and combining their meanings; "`smog' is a blend of `smoke' and `fog'"; "`motel' is a portmanteau word made by combining `motor' and `hotel'"; "`brunch' is a well-known portmanteau"
air pollution - pollution of the atmosphere; "air pollution reduced the visibility"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.