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\ ˈbē-ˈtē 
\
\Definition of Bt
(Entry 1 of 2)
: a preparation of a bacterium (Bacillus thuringiensis) often modified by genetic engineering for use as a biopesticide against insects and especially lepidopteran larvae also : the bacterium itself
Bt
abbreviationDefinition of Bt (Entry 2 of 2)
baronet
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Time Traveler for Bt
The first known use of Bt was in 1971
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