Definition of "glacial" in English

adjective

1. Of, or relating to glaciers.

   • We examined the glacial deposits.
   • Wang Shijin is a glacier expert and director of the Yulong Snow Mountain Glacial and Environmental Observation Research Station.

2. (figuratively) Very slow.

3. Cold and icy.

   • After the rain and frost, the pavements were glacial.

4. Having the appearance of ice.

   • On cold days, glacial acetic acid will freeze in the bottle.

5. (figuratively) Cool and unfriendly.

   • He gave me a glacial stare.

noun

1. A glacial period (colloquially known as an ice age).