ˈgrəfs noun plural
Etymology: plural of obsolete English gruff, from gruff (I)
: the tough parts not easily reducible to powder that remain in the process of powdering drugs — called also tailings
ˈgrəfs noun plural
Etymology: plural of obsolete English gruff, from gruff (I)
: the tough parts not easily reducible to powder that remain in the process of powdering drugs — called also tailings
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012