\Post*gla"cial\, a. (Geol.)
(a) Formed or occurring after the last glacial epoch of the
    Pleistocene period, or at a locality within the area of
    Pleistocene glaciation after the final disappearance of
    the glacier from the locality.
(b) Of, pertaining to, or designating, an epoch after the
    last Glacial and before the Terrace epoch. [R.]