Quat Explained

Quat may refer to:

• Quat (surname), a Chinese surname
• Quaternary ammonium cation, a class of chemical molecules used as a disinfectant, surfactant, drug etc.
• Quaternion, a non-commutative extension of the complex numbers
• Quaternary (disambiguation), referring to four parts, divisions, or sets.
• Khat, an African plant whose leaves are chewed as a stimulant
• Phan Huy Quát, former prime minister of South Vietnam