| 单词 | hardness |
| 释义 | hardness /hahrd"nis/, n. 1. the state or quality of being hard: the hardness of ice. 2. a relative degree or extent of this quality: wood of a desirable hardness. 3. that quality in water that is imparted by the presence of dissolved salts, esp. calcium sulfate or bicarbonate. 4. unfeelingness or jadedness; callousness. 5. harshness or austerity, as of a difficult existence. 6. South Midland U.S. ill will; bad feelings: There's a lot of hardness between those two boys. 7. Mineral. the comparative ability of a substance to scratch or be scratched by another. Cf. Mohs scale. 8. Metall. the measured resistance of a metal to indention, abrasion, deformation, or machining. [bef. 900; ME hardnes, OE heardnes. See HARD, -NESS] |
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