/
ˈgleɪsɪəl,
-ʃ(ə)l/
adj.
- relating to ice, especially in the form of glaciers.
- extremely cold.
▸unfriendly or unemotional.
- Chemistry denoting pure organic acids (especially acetic acid) which form ice-like crystals on freezing.
n.
Geology a glacial period.
Derivative
Etymology
C17: from Fr., or from L. glacialis ‘icy’.