What does "malleation" mean?

The act or process of malleating (beating into a plate, sheet, or leaf, as a metal)

Malleation

noun

noun ·Rare ·Advanced level

Noun

1
The act or process of malleating (beating into a plate, sheet, or leaf, as a metal) countable, uncountable
2
Forceful or constant bending, shaping working countable, figuratively, uncountable
3
A hammering movement of the hands against the thighs, a form of tic. countable, uncountable

Latin malleatio: compare Old French malleation.