1. Steel with a surface that is much harder than the interior metal

Type of: steel

• decimal point
• decimal system
• decimal system of classification
• decimalisation
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• decimalize
• decimate
• decimation
• decimeter
• decimetre
• Decimus Junius Juvenalis
• decipher
• decipherable
• decipherably
• deciphered
• decipherer
• decipherment
• decision
• decision maker
• decision table
• decision-making
• decisive
• decisive factor
• decisively