harden

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  • verb

Synonyms for harden

Synonyms for harden

to make or become physically hard

to make firmer in a particular conviction or habit

to make resistant to hardship, especially through continued exposure

Synonyms for harden

become hard or harder

make hard or harder

harden by reheating and cooling in oil

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make fit

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References in periodicals archive ?
The runner beans are all still in the cold frame as the process of hardening off (acclimatising them to life outdoors) begins, while the butternut squash and leeks have yet to venture outside the greenhouse.
For example, one fully closed for germination, another had vents open for hardening off seedlings and one had its lid off for growing on.
By mid-spring they need hardening off and can be planted out after all dangers of frost have passed.
1 Hardening off - we all know the old saying about 'ne'er cast a clout till May be out.
That means hardening off before transplanting in the garden, hanging basket or patio container, a procedure once followed as a matter of course but not something that occurs to all gardeners nowadays.
The main activity this month with bedding plants is hardening off.
You don't see many cold frames these days - strange as they are invaluable for hardening off plants, getting them used to cool conditions but keeping them frostfree.