| 单词 | nitrous oxide |
| 释义 | > as lemmasnitrous oxide nitrous oxide n. a colourless gas, N2O, made by heating ammonium nitrate, which has a faint sweetish odour and taste, and when inhaled produces anaesthesia or (at lower concentrations) a feeling of exhilaration; also called laughing gas. ΘΚΠ the world > matter > chemistry > chemical substances > named gases > [noun] > containing nitrogen > nitrous oxide nitrous oxide1799 laughing gas1819 nitrogen monoxide1869 nitrous1977 1799 H. Davy in T. Beddoes Contrib. Physical & Med. Knowl. 79 A gas or gases indiminishable by nitrous oxyd. 1809 W. Irving Hist. N.Y. I. i. v. 62 We have treated them to mouthfuls of moonshine and draughts of nitrous oxyde, which they swallowed with incredible voracity, particularly the females. 1878 L. P. Meredith Teeth (ed. 2) 205 The..use of nitrous oxide for certain bodily complaints. 1990 D. Schimel in J. Leggett Global Warming iii. 79 Increasing temperature increases both inorganic nitrogen production and nitrous oxide emission. < as lemmas |
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