peen
verb(peen)
to draw, bend, or flatten by or as if by hammering with a peen
peen
noun(peen)
a usually hemispherical or wedge-shaped end of the head of a hammer that is opposite the face and is used especially for bending, shaping, or cutting the material struck
peen
noun(peen)
a hammer having a hemispherical peen at one end of its head