氷ひょう期き

noun

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).

• 最さい終しゅう氷ひょう期きは約やく1いち万まん年ねん前まえに終おわった。

  The last glacial period ended about 10,000 years ago.