| 单词 | melaxuma |
| 释义 | melaxuma in American English (ˌmeləˈkuːmə, -əˈzuː-, -əkˈsuː-) noun Plant Pathology a disease of trees, esp. walnuts, characterized by an inky-black liquid oozing from the affected twigs, branches, and trunk, and by bark cankers, caused by any of several fungi, as Dothiorella gregaria Word origin [1930–35; ‹ NL, irreg. ‹ Gk mélā(s) black + chýma fluid (with x- repr. Gk ch-)] |
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