Of or belonging to the geologic time, system of rocks, or sedimentary deposits of the second period of the Cenozoic Era, from the end of the Tertiary Period through the present, characterized by the appearance and development of humans and including the Pleistocene and Holocene epochs.
Chemistry Relating to an atom bonded to four carbon atoms: a quarternary nitrogen atom.
The QUATERNARY economic sector is said to be that of intellectual organization in a society such as government, research, cultural programs, Information Technology (IT), education and libraries. The...
The quaternary sector of the economy consists of intellectual activities. Activities associated with this sector include government, culture, libraries, scientific research, education, and...