noun
: a cylindrical receptacle communicating with a bearing and having a deep screw top which may be packed full of lubricating grease and which when screwed on forces the grease into the bearing
noun
: a cylindrical receptacle communicating with a bearing and having a deep screw top which may be packed full of lubricating grease and which when screwed on forces the grease into the bearing
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012