: a piece of material used to mend or cover a hole or a weak spot
2
: a tiny piece of black silk or court plaster worn on the face or neck especially by women to hide a blemish or to heighten beauty
3
a
: a piece of material (such as adhesive plaster) used medically usually to cover a wound
b
: a usually disk-shaped piece of material that is worn on the skin and contains a substance (such as a drug) that is absorbed at a constant rate through the skin into the bloodstream
a nicotine patch
c
: a shield worn over the socket of an injured or missing eye