Bt

1 of 2

noun

ˈbē-ˈtē 

: 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

2 of 2

abbreviation

baronet

Word History

Etymology

Noun

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

First Known Use

Noun

1971, in the meaning defined above

Medical Definition

BT

abbreviation

1

bedtime

2

brain tumor