From Wikipedia, the free encyclopedia
Quat may refer to:
- Quat (surname), a Chinese surname
- Quaternary ammonium cation, a class of chemical molecules
- Quaternion, a non-commutative extension of the complex numbers
- Quaternary_(disambiguation), referring to 4 parts, divisions, or sets.
- Khat, an African plant whose leaves are chewed as a stimulant
- Phan Huy Quát, former prime minister of South Vietnam
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