Definition of Toughened

1. Adjective. Physically toughened. "The tough bottoms of his feet"

2. Adjective. Made hard or flexible or resilient especially by heat treatment. "Tempered glass"
Exact synonyms: Hardened, Tempered, Treated
Similar to: Curable, Sunbaked
Antonyms: Untempered

Definition of Toughened

1. Verb. (past of toughen) ¹

¹ Source:

Definition of Toughened

1. toughen [v] - See also: toughen

Toughened Pictures

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Lexicographical Neighbors of Toughened

tough luck
tough nut to crack
tough nuts to crack
tough out
tough road to hoe
tough row to hoe
tough toodles
tough tuchus
toughed out
toughen up
toughened (current term)
toughened silver nitrate
toughing out

Literary usage of Toughened

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal by Royal Society of Arts (Great Britain) (1875)
"toughened glass presents features which appear to some extent paradoxical. It would appear that toughened glass possesses enormous cohesive power, ..."

2. American Druggist (1885)
"toughened Filter-papers. IN attempting to prepare pyroxylin filters, the writer found that paper was remarkably toughened by the action of nitric acid, ..."

3. The Science Record edited by Alfred Ely Beach (1876)
"THE BASTIE toughened GLASS. WE recently witnessed a number of interesting experiments upon the Bastie toughened or tempered glass, exhibited by Professor ..."

4. The Living Age by Making of America Project, Eliakim Littell, Robert S. Littell (1876)
"A piece of toughened glass of similar dimensions, similarly treated, ... As singular as any other feature presented by toughened glass are the results of ..."

5. Handbook for Mechanical Engineers by Henry Adams (1897)
"toughened CAST IRON. toughened cast iron is produced by adding to the cast iron, ... Rendered brittle by absorption of carbon, refined and toughened during ..."

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