noun
1. : a circular wooden block used in spinning sheet metal on a lathe
2. : an adjustable block or plate used in a card file to keep the cards in upright position
noun
1. : a circular wooden block used in spinning sheet metal on a lathe
2. : an adjustable block or plate used in a card file to keep the cards in upright position
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012