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

Origin of TRISTEZA

Portuguese, literally, sadness, from Latin tristitia, from tristis sad
First Known Use: circa 1902


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