melaxuma

[ mel-uh-koo-muh, -uh-zoo-, -uhk-soo- ]

noun

, Plant Pathology.

1. a disease of trees, especially 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 History and Origins

Origin of melaxuma¹

1930–35; < New Latin, irregular < Greek mélā ( s ) black + chýma fluid (with x- representing Greek ch- )