toughened   (TTS Sound)

The toughened has 2 Senses.

• tough, toughened
• 岩乗, 強靭, タフ, 硬い, ごっつい, ごつい, 堅い, 頑丈, 強硬, ハード, 頑強, 強剛, 強い, 手ごわい, 強堅, 強靱, 手強い, 強壮, 固い
• physically toughened; "the tough bottoms of his feet"
• 物理的に強くされる

• tempered, hardened, treated, toughened
• made hard or flexible or resilient especially by heat treatment; "a sword of tempered steel"; "tempered glass"
• 特に熱処理によって、堅くなる、柔軟になる、また弾力的になる