cryophile

A cryophile is an organism that thrives in extremely cold environments, typically at temperatures near or below freezing.

These include certain bacteria, algae, fungi, and insects found in glaciers, permafrost, polar regions, and deep ocean waters.

The term combines Greek roots meaning "cold" and "loving," and appears primarily in scientific contexts discussing extremophiles—organisms adapted to harsh conditions.

Researchers discovered a new cryophile species living in Antarctic ice cores.