Definitions for earmuffˈɪərˌmʌf
Random House Webster's College Dictionary
Usu., earmuffs. one of a pair of pads set on a headband and worn over the ears in cold weather.
Origin of earmuff:
either of a pair of ear coverings (usually connected by a headband) that are worn to keep the ears warm in cold weather
A garment to keep the ears warm.
Origin: ear + muff