the Stone Age

: a concretion of earthy or mineral matter:

: such a concretion of indeterminate size or shape

: rock

: to hurl stones at

: to make hard or insensitive to feeling

: to face, pave, or fortify with stones

: entirely, utterly

: of, relating to, or made of stone

: absolute, utter

: the time of life at which some particular qualification, power, or capacity arises or rests

: one of the stages of life

: the length of an existence extending from the beginning to any given time

: to become old : show the effects or the characteristics of increasing age

: to acquire a desirable quality (such as mellowness or ripeness) by standing undisturbed for some time

: to cause to become old

: aggregate : collection

: action : process

: cumulative result of