| 单词 |
ulmin |
| 释义 |
ulmin
ulmin (ˈʌlmɪn) na dark substance found in decaying vegetationa substance secreted by some trees including the elmulmin
ulmin[′əl·mən] (geology) Alkali-soluble organic substances derived from decaying vegetable matter; occurs as amorphous brown to black gel material. Also known as carbohumin; fundamental jelly; fundamental substance; gelose; humin; humogelite; jelly; ulmic acid; vegetable jelly. |
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