Africanized bee

Từ điển Oxford Learners Wordfinder Dictionary

noun

a strain of bees that originated in Brazil in the 1950s as a cross between an aggressive African bee and a honeybee;
retains most of the traits of the African bee;
now spread as far north as Texas
• Syn:
Africanized honey bee, killer bee, Apis mellifera scutellata, Apis mellifera adansonii
• Hypernyms:
honeybee, Apis mellifera