A razor with a blade that can fold into its handle.

Atlantic jackknife clam, Ensis directus. / Razor shell, Ensis arcuatus, now Ensis magnus. / Atlantic razor clam, Siliqua costata. / Pacific razor clam, Siliqua patula.

A broad, heavy leather strop, designed to whet a razor on / A similar strap, used as a spanking instrument / A birch bracket fungus.

razor strop

plural of razor blade

plural of safety razor

A razor, designed for safety, that protects the skin from all but the very edge of the blade (as opposed to a straight razor).

A form of securing wire similar to barbed wire, but with a series of short blades instead of barbs. Also, a length thereof.

plural of razor shell

The adage "Never attribute to malice that which is adequately explained by stupidity."