Definify.com
Webster 1913 Edition
Glacial
Gla′cial
,Adj.
[L.
glacialis
, from glacies
ice: cf. F. glacial
.] 1.
Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers;
as,
. glacial
phenomenaLyell.
2.
(Chem.)
Resembling ice; having the appearance and consistency of ice; – said of certain solid compounds;
as,
. glacial
phosphoric or acetic acidsGlacial acid
(Chem.)
, an acid of such strength or purity as to crystallize at an ordinary temperature, in an icelike form; as acetic or carbolic acid.
– Glacial drift
(Geol.)
, earth and rocks which have been transported by moving ice, land ice, or icebergs; bowlder drift.
– Glacial epoch
or
Glacial period
(Geol.)
, a period during which the climate of the modern temperate regions was polar, and ice covered large portions of the northern hemisphere to the mountain tops.
– Glacial theory
or Glacial hypothesis
(Geol.)
See
Glacier theory
, under Glacier
.Webster 1828 Edition
Glacial
GLA'CIAL
,Adj.
Icy; consisting of ice; frozen.