Definify.com
Webster 1913 Edition
Peen
Peen
(pēn)
, Noun.
[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
.] Peen
,Verb.
T.
To draw, bend, or straighten, as metal, by blows with the peen of a hammer or sledge.