noun
: a button-sized stud consisting of a disk joined by a shank to a smaller disk, knob, or hinged flap and used for buttoning a collar to a shirt
noun
: a button-sized stud consisting of a disk joined by a shank to a smaller disk, knob, or hinged flap and used for buttoning a collar to a shirt
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012