quaternary

Etymology
, from +  (whence the 🇨🇬 suffix ); compare the 🇨🇬.

Adjective

 * 1) Of fourth rank or order.
 * 2) Of a mathematical expression containing e.g. x4.
 * 3) Relating to or in number base four.
 * 4)  quaternary ammonium.
 * 5)  Composed of four elements.
 * 1)  Composed of four elements.

Usage notes
The fourth ordinal from Latin that might etymologically follow is, but quaternary (from the distributive number instead) is more usual in English.

Translations

 * Bulgarian: четвъртичен
 * Catalan: quaternari, quaternària
 * Estonian:
 * Finnish:, kvaternaarinen
 * French: d'ordre quatre,
 * Italian:
 * Malay: aras empat, kuaterner
 * Portuguese:
 * Russian:


 * Finnish: neljännen asteen
 * French: d'ordre quatre

Noun

 * 1)  A quaternary compound.
 * 2)  The Quaternary period or the system of deposits laid down during it.