noun
Etymology: after Sir Joseph Whitworth died 1887
: a screw thread with V-shaped cut used chiefly in Britain for screws of larger sizes
noun
Etymology: after Sir Joseph Whitworth died 1887
: a screw thread with V-shaped cut used chiefly in Britain for screws of larger sizes
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012