quaternary


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quaternary

1. Chem containing or being an atom bound to four other atoms or groups
2. Maths having four variables

Quaternary

1. of, denoting, or formed in the most recent period of geological time, which succeeded the Tertiary period nearly two million years ago
2. the. the Quaternary period or rock system, divided into Pleistocene and Holocene (Recent) epochs or series
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Quaternary

[′kwät·ən‚er·ē]
(geology)
The second period of the Cenozoic geologic era, following the Tertiary, and including the last 2-3 million years.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This new hospital will offer state-of-the-art quaternary care services to the people of Bengaluru as well as those coming to the city as part of Medical Value Travel from outside the country.
The atomic coordinates of [CuFeInSe.sub.3] [12] were used as starting model for the quaternary [CuMnInSe.sub.3].
A karst-fractured aquifer is buried deeply below the Quaternary strata in the north of the fault, thereby forming water-blocking boundaries.
The investigators were less rigid in the distinction between tertiary and quaternary levels, as these patients are managed in the same centre and require access to similar resources.
Radiant is one of the few established companies managing hospitals in the metropolitan areas of Mumbai and Delhi that offer high-end quaternary care, including vital organ transplants.
In addition, quaternary, amino and oxidized nitrogen functionalities were also found.
The Maghnia plain itself corresponds to a graben filled with Quaternary and Tertiary sediments that is bounded to the south (Ghar Rouban) and to the north (Traras) by horsts.
Key Word: Fumigation, Effectiveness, Quaternary ammonium compounds, Formaldehyde.
It enumerates methods of primordial, primary, secondary, tertiary and quaternary prevention of lipohypertrophy.
At the astronomical observatory, a seismic cellar is also located, which is underlined by the Quaternary sediments whose thickness amounts to roughly 16.5 m.