| 单词 | pyrazoline |
| 释义 | pyrazoline[ pi-raz-uh-leen, -lin, pahy- ] / pɪˈræz əˌlin, -lɪn, paɪ- / noun Chemistry.any of the group of heterocyclic compounds containing three carbon atoms, two adjacent nitrogen atoms, and one double bond in the ring. the parent compound, C3H6N2. Origin of pyrazolineFirst recorded in 1885–90; pyrazole + -ine2 Words nearby pyrazolinepyranoside, pyrargyrite, pyrazinamide, pyrazine, pyrazole, pyrazoline, pyrazolone, pyrazolone dye, pyre, pyrene, Pyrenean Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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