noun
( -s )
Etymology: from gerund of hack (I)
: the system of low cuts or scratches and grooves in a lap to hold diamond powder for cutting and polishing gems
noun
( -s )
Etymology: from gerund of hack (I)
: the system of low cuts or scratches and grooves in a lap to hold diamond powder for cutting and polishing gems
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012