Africanized bee
US /ˌæf.rɪ.kə.naɪzd ˈbiː/
UK /ˌæf.rɪ.kə.naɪzd ˈbiː/

1.
a hybrid bee, descended from a cross between European honey bees and African honey bees, known for its aggressive defensive behavior
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The beekeeper warned us about the aggressive nature of the Africanized bee.
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Scientists are studying the genetics of the Africanized bee to understand its behavior.