toughened : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: toughened	by the DICT Development Group
2 results for toughened
From WordNet (r) 3.0 (2006) [wn]:
toughened adj physically toughened; "the tough bottoms of his feet" Synonym(s): tough, toughened Antonym(s): tender, untoughened made hard or flexible or resilient especially by heat treatment; "a sword of tempered steel"; "tempered glass" Synonym(s): tempered, treated, hardened, toughened Antonym(s): unhardened, untempered
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Toughen \Tough"en\, v. i. & t. [imp. & p. p. {Toughened}; p. pr. & vb. n. {Toughening}.] To grow or make tough, or tougher.