What does quat stand for?

Quaternary (AD)

Quattuor - Four - Latin (AD)

Quater - Four Times - Pharmacy

Quaternary - Period, era, or system - Geology

Quaternary Ammonium Compound - Class of antimicrobial agents

Quaternary Era (SAUS)

Quaternion (NASA)

Quatrefoil - Numismatics

Quattuor - Four - Latin (DAVI)

Quercus atlantica Ashe (pro sp.) - Scientific name - Family: Fagaceae - USDA National Plant Data Center symbol - Botany - Taxonomy (USDA)

Quaternary (AD)