protoxide

4 senses · Free VividLex dictionary · Thesaurus

1. n. That one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b). Source: opted
2. That one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b). protoxide of nitrogen, laughing gas, now called hyponitrous oxideNO. See under Laughing. Source: webster
3. That one of a series of oxides having the lowest proportion ofoxygen. See Proto-, 2 (b). protoxide of nitrogen, laughing gas, nowcalled hyponitrous oxideNO. See under Laughing. Source: adambom
4. n. That one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b). Source: ecdict

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