Origin: Latin suffix -tion
Glaciation has 3 different meanings across 1 category:
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
The process of covering with a glacier, or the state of being glaciated; the production of glacial phenomena; an ice age