The full form of BT depends on the context. It can refer to several things:
1. Bacillus thuringiensis
In the context of biotechnology and agriculture, BT most commonly stands for Bacillus thuringiensis. This is a bacterium that produces proteins toxic to certain insects, but not harmful to humans or mammals. These proteins are used as a biological insecticide in genetically modified (GM) crops and other applications. As stated in one reference, "Bacillus thuringiensis forms proteins that can be harmful to certain insects however these proteins are not toxic to human beings since mammals do not have the ability to activate these proteins. It can be noted that Bt can act as an insecticide mainly with regard to insect larvae." This is a widely used and researched method for pest control.
2. Other Uses of BT as an Abbreviation
Besides Bacillus thuringiensis, BT is also used as an abbreviation in other contexts, often related to forms and applications within government and business sectors. Examples from various online resources include:
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Forms and Applications: Several state government websites utilize "BT" in the naming of their tax forms and applications. For instance, references include forms such as BT-1, BT-136, BT-22, and BT-Summary from Wisconsin, Indiana, Connecticut, and New Hampshire's Department of Revenue respectively. These forms typically pertain to business taxes, permits, or reporting requirements.
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Slang: In informal online discussions, such as a Reddit thread about Delhi slang, "BT" might be used as an abbreviation for "bad time" or "bad trip."
Therefore, the full form of BT requires clarification based on the context in which it's used.
