quaternary
This term functions primarily as a technical descriptor for the number four, mirroring the progression from primary, secondary, and tertiary. It is most frequently encountered in specialized scientific fields, such as biochemistry to describe the assembly of multiple protein subunits or in mathematics to describe base-4 numeral systems.
In a geological context, the word refers to the most recent period of Earth's history. When used as a noun in this sense, it typically refers to the Quaternary Period, often capitalized in academic literature to denote the specific epoch encompassing the Pleistocene and Holocene.
Meanings
Consisting of four parts or elements.
The molecule has a quaternary structure that determines its final three-dimensional shape.
Fourth in a sequence or order.
The quaternary stage of the process is the most complex to implement.
Relating to the current and most recent geological period, which began approximately 2.58 million years ago.
Researchers are studying quaternary deposits to understand the last ice age.
The current geological period characterized by the Pleistocene and Holocene epochs.
The rise of human civilization occurred during the quaternary.