As a verb concurrence
is .
As a proper noun quaternary is
(geology) the geological period of the cenozoic era immediately following the tertiary it is subdivided into the pleistocene and the holocene epochs.
concurrence
English
Noun
(
en noun)
Agreement; concurring.
An instance of simultaneous occurrence.
Related terms
* concur
quaternary
English
Adjective
(-)
Of fourth rank or order.
Of a mathematical expression containing e.g. x4.
Related terms
* quaternion
See also
* singular, unary (1)
* primary (1st)
* binary (2)
* secondary (2nd)
* ternary or trinary (3)
* tertiary (3rd)
* quaternary (4)
* quartary (4th)
* quinary (5)
* senary (6)
* septenary (7)
* octonary (8)
* novenary (9)
* nonary (9th)
* denary (10)
* duodenary (12)
* vigenary (20)
* centenary (100)