tristeza

noun
tris·te·za | \ tri-ˈstā-zə \

Definition of tristeza 

: a highly infectious disease of citrus trees grafted on sour orange rootstocks that is caused by a single-stranded RNA virus (species Citrus tristeza virus of the genus Closterovirus, family Closteroviridae) transmitted by aphids and that eventually causes death of the trees

First Known Use of tristeza

circa 1902, in the meaning defined above

History and Etymology for tristeza

Portuguese, literally, sadness, from Latin tristitia, from tristis sad

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The first known use of tristeza was circa 1902

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