Peen

from WordNet (r) 3.0 (2006)

peen
    n 1: the part of a hammerhead opposite the flat striking surface
         (may have various shapes)

from The Collaborative International Dictionary of English v.0.48

Peen \Peen\, v. t.
   To draw, bend, or straighten, as metal, by blows with the
   peen of a hammer or sledge.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Peen \Peen\ (p[=e]n), n. [Cf. G. pinne pane of a hammer.]
   (a) A round-edged, or hemispherical, end to the head of a
       hammer or sledge, used to stretch or bend metal by
       indentation.
   (b) The sharp-edged end of the head of a mason's hammer.
       [Spelt also {pane}, {pein}, and {piend}.]
       [1913 Webster]

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