![melaxuma melaxuma](https://www.tekportal.net/wp-content/uploads/2018/12/melaxuma.jpg)
noun Plant Pathology.
- 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.
noun Plant Pathology.