safety pin(redirected from Safetypin)
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1. A pin in the form of a clasp, having a sheath to cover and hold the point.
2. A pin that prevents the premature or accidental detonation of an explosive device, such as a bomb or grenade.
1. a spring wire clasp with a covering catch, made so as to shield the point when closed and to prevent accidental unfastening
2. (Military) another word for pin9
a pin bent back on itself to form a spring, with a guard to cover the point.
safe′ty-pin`, v.t. -pinned, -pin•ning.