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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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