ironing

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ironing

[ī·ərn·iŋ]
(metallurgy)
Reducing the wall thickness of a deep-drawn object by reducing the clearance between punch and die.
References in periodicals archive ?
Two main types of iron evolved: the box iron and the sad iron, 'sad' here not referring to the way you might feel about ironing, but deriving from a word meaning solid.
My paternal grandmother used to say of Tuesdays that she worked with her "sad iron." When I asked her why she called it a "sad iron," she said, "Because, honey, I'd just iron and cry and cry and iron." Now this was the same woman who went out and milked all the cows before going back inside to finish labor and deliver my father, but I never heard her speak of birth and child-rearing as being equal to the misery of laundry.
I also have received as a gift an antique sad iron that I keep on the stove at all times.