underdraft

[ uhn-der-draft, -drahft ]
/ ˈʌn dərˌdræft, -ˌdrɑft /

noun Metalworking.

a tendency of a rolled piece to curve downward after passing through a stand, occurring when the upper roll is faster than the lower.Compare overdraft(def 7).

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Origin of underdraft

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020