- of or relating to glaciers or ice sheets.
- resulting from or associated with the action of ice or glaciers: glacial terrain.
- characterized by the presence of ice in extensive masses or glaciers.
- bitterly cold; icy: a glacial winter wind.
- happening or moving extremely slowly: The work proceeded at a glacial pace.
- icily unsympathetic or immovable: a glacial stare; glacial indifference.
- Chemistry. of, relating to, or tending to develop into icelike crystals: glacial phosphoric acid.
- characterized by the presence of masses of ice
- relating to, caused by, or deposited by a glacier
- extremely cold; icy
- cold or hostile in mannera glacial look
- (of a chemical compound) of or tending to form crystals that resemble iceglacial acetic acid
- very slow in progressa glacial pace
1650s, “cold, icy,” from French glacial, from Latin glacialis “icy, frozen, full of ice,” from glacies “ice,” probably from PIE root *gel- “cold” (cf. Latin gelu “frost;” see cold (adj.)). Geological sense apparently coined in 1846 by British naturalist Edward Forbes (1815-1854). Related: Glacially.
- Relating to or derived from a glacier.
- Characterized or dominated by the existence of glaciers, as the Pleistocene Epoch.