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Webster 1913 Edition
Tsetse
Tset′se
,Noun.
(Zool.)
A venomous two-winged African fly (
Glossina morsitans
) whose bite is very poisonous, and even fatal, to horses and cattle, but harmless to men. It renders extensive districts in which it abounds uninhabitable during certain seasons of the year. [Written also
tzetze
, and tsetze
.]