| hardness |
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale unfeelingness: devoid of passion or feeling; hardheartedness the quality of being difficult to do; "he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail" severity: excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
출처: wordnet.princeton.edu/perl/webwn
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| hard palate |
the bony part of the roof of the mouth
출처: wordnet.princeton.edu/perl/webwn
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| hard solder |
solder that contains copper; melts at a relatively high temperature; used for brazing
출처: wordnet.princeton.edu/perl/webwn
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| hard water |
water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap
출처: wordnet.princeton.edu/perl/webwn
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| hardening |
abnormal hardening or thickening of tissue the process of becoming hard or solid by cooling or drying or crystallization; "the hardening of concrete"; "he tested the set of the glue" the act of making something harder (firmer or tighter or more compact)
출처: wordnet.princeton.edu/perl/webwn
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