(archaeology) An age characterised by the use of tools made from a specific type of metal.

The age characterised by the use of metal tools. / The Copper Age.

(astrology) A historical period corresponding to the astrological sign of Aquarius, concerning the timing of which (past, present, or future) there is a wide range of views.

(intransitive) To become too old for an activity, program or institution; to become too mature for a behavior. / (euphemistic, politics) To die or retire.

plural of age distribution

(historical, aviation) A period in history defined by the advent of aircraft powered by turbine engines, and by the social change this brought about.

Having an older age.

Synonym of liver spot

plural of age limit

plural of age-mate