quaternary
-
(s) consisting of or especially arranged in sets of four
- quaternate leaves
- a quaternary compound
-
(s) coming next after the third and just before the fifth in position or time or degree or magnitude
- the quaternary period of geologic time extends from the end of the tertiary period to the present
Nouns
- (n) last 2 million years Age of Man, Quaternary period,
- (n) the cardinal number that is the sum of three and one 4, four, IV, Little Joe, quadruplet, quartet, quatern, quaternion, quaternity, tetrad, foursome,