exocortis

noun

exo·​cor·​tis

ˌeksəˈkȯrtə̇s

plural -es

: a disease of oranges that is especially important in trees grafted on trifoliate stock, is characterized by peeling of the outer bark in narrow dry strips and by dwarfing of the tree, and is caused probably by either a virus or a genetic factor

Word History

Etymology

International Scientific Vocabulary exo- + -cortis (irregular from cortex)

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