glacial period; ice age
Geological term for a period of extensive glaciation. Often used in contexts such as 氷期と間氷期 (glacial and interglacial periods).
The last glacial period ended about 10,000 years ago.
stadial; stade
postglacial period
interglacial period; interglacial
Compound of 氷 (ひょう, 'ice') and 期 (き, 'period').