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单词 melaxuma
释义

WordReference Random House Unabridged Dictionary of American English © 2024
mel•a•xu•ma  (mel′ə ko̅o̅mə, -ə zo̅o̅-, -ək so̅o̅-),USA pronunciation n. [Plant Pathol.]
  1. Plant Diseasesa 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.
  • Greek mélā(s) black + chýma fluid (with x- representing Greek ch-)
  • Neo-Latin, irregularly
  • 1930–35

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