say it: glay-shee-AY-shuhn
glaciation is a noun meaning "the condition of being covered with glaciers or masses of ice; the result of glacial action". It carries 2 recorded senses.
the condition of being covered with glaciers or masses of ice; the result of glacial action
“Agassiz recognized marks of glaciation all over northern Europe”
the process of covering the earth with glaciers or masses of ice
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for glaciation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.