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Definition of Earmuff
1. Noun. Either of a pair of ear coverings (usually connected by a headband) that are worn to keep the ears warm in cold weather. 
Generic synonyms: Covering
Definition of Earmuff
1. one of a pair of ear coverings [n -S]
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1. Noun. Either of a pair of ear coverings (usually connected by a headband) that are worn to keep the ears warm in cold weather. 
1. one of a pair of ear coverings [n -S]