| 单词 | temporary tooth |
| 释义 | > as lemmastemporary tooth b. temporary hardness, hardness of water that can be removed by boiling, because it is due to bicarbonates which are thereby precipitated; temporary star (Astronomy), a star which appears suddenly, shines for a time, and then almost or entirely disappears; temporary tooth, a deciduous tooth, milk-tooth. ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [noun] > milk calf's-teeth1599 fore-tooth1601 sucking-tooth1601 milk tooth1738 deciduous tooth1755 shedding tooth1799 temporary tooth1802 baby tooth1834 the world > the universe > star > kind of star > by light > [noun] > temporary temporary star1833 the world > matter > liquid > water > [noun] > hardness or softness of hardness1712 softness1712 permanent hardness1870 temporary hardness1895 1802 Med. & Physical Jrnl. 8 559 The first teeth, or those of childhood, the author calls temporary, the set which succeeds them he terms permanent. 1833 J. F. W. Herschel Astronomy xii. 383 The phænomena we allude to are those of temporary stars. 1842 E. Wilson Anatomist's Vade Mecum (ed. 2) 51 The Temporary teeth are 20 in number, 8 incisors, 4 canine, and 8 molars. 1895 H. Collet Water Softening & Purification i. 2 The temporary hardness is that due to the bicarbonates of lime and magnesia. 1969 H. T. Evans tr. G. Hägg Gen. & Inorg. Chem. xxvi. 666 Carbonate precipitation on boiling causes the water to lose its carbonate hardness or temporary hardness while a permanent hardness remains. < as lemmas |
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