Quaternary (disambiguation)
From Wikipedia, the free encyclopedia
Quaternary is an adjective meaning "fourth" or "fourth hand". It may refer to:
- Quaternary, the geologic period.
- Quaternary numeral system (base-4) in mathematics.
- Quaternary, an EP by the heavy metal band Mötley Crüe.
- Quaternary structure in structural biology.
- A Quaternary functional group (or usually ion) attached to carbon atom connected to 4 other Carbon atoms in organic chemistry
