| 释义 |
Definition of picein in English: piceinnoun ˈpɪsɪɪnˈpʌɪsɪɪn 1Chemistry. A glucoside present in various trees, especially willows and conifers; p-hydroxyacetophenone-β-glucoside, CH₃·CO·C₆H₄·O·C₆H₁₁O₅. 2(Also with capital initial.) An inert thermoplastic substance composed of hydrocarbons from rubber, shellac, and bitumen, used for making joints airtight.
Origin Late 19th century; earliest use found in Journal of the Chemical Society. From classical Latin piceus pitchy + -in. Definition of picein in US English: piceinnoun 1Chemistry. A glucoside present in various trees, especially willows and conifers; p-hydroxyacetophenone-β-glucoside, CH₃·CO·C₆H₄·O·C₆H₁₁O₅. 2(Also with capital initial.) An inert thermoplastic substance composed of hydrocarbons from rubber, shellac, and bitumen, used for making joints airtight.
Origin Late 19th century; earliest use found in Journal of the Chemical Society. From classical Latin piceus pitchy + -in. |