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case·hard·en
 caseharden
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- pronunciation:
- keIs
har
d
 n
| part of speech: |
transitive verb |
| inflections: |
casehardens, casehardening, casehardened |
| definition 1: |
to form a hard thin surface on (an alloy of iron) by bonding with carbon under heat.
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| definition 2: |
to make hard or indifferent, as through experience; inure.
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| derivation: |
casehardened (adj.) |
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