Bt

noun
\ ˈbē-ˈtē How to pronounce Bt (audio) \

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

Definition of Bt (Entry 2 of 2)

baronet

First Known Use of Bt

Noun

1971, in the meaning defined above

History and Etymology for Bt

Noun

New Latin Bacillus thuringiensis, species name, literally, Thuringian bacillus

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Cite this Entry

“Bt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Bt. Accessed 3 Mar. 2021.

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Medical Definition of BT

1 bedtime
2 brain tumor

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