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Period of glaciation
Answer for the clue "Period of glaciation ", 7 letters:
ice age
Word definitions for ice age in dictionaries
Wiktionary
Word definitions in Wiktionary
n. Any of several cold periods in the history of the earth marked by episodes of extensive glaciation alternating with episodes of relative warmth.
Wikipedia
Word definitions in Wikipedia
__NOTOC__ An ice age is a geologic period characterized by the presence of polar ice sheets and alpine glaciers. Periods of major glaciation (commonly also referred to as ice ages ) are scientifically termed glacial periods . Ice Age may also refer to:
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Ice \Ice\ ([imac]s), n. [OE. is, iis, AS. [=i]s; aksin to D. ijs, G. eis, OHG. [=i]s, Icel. [=i]ss, Sw. is, Dan. iis, and perh. to E. iron.] Water or other fluid frozen or reduced to the solid state by cold; frozen water. It is a white or transparent colorless ...
WordNet
Word definitions in WordNet
n. any period of time during which glaciers covered a large part of the earth's surface; "the most recent ice age was during the Pleistocene" [syn: glacial period , glacial epoch ]
Usage examples of ice age.
It looked thirteen, but the lips smiled a cool self-infatuated seventeen, while the gleaming deep eye-pools were first blue melt of the Ice Age.
The _Dolphin_, I had to admit, made any British submarine I'd ever seen look like a relic from the Ice Age.
They'll have full status in a few millennia, and they'll keep it, once they're assured of a cultural foundation that's not going to be shattered by a new ice age every time it gets started.
The problem is we're still in the interglacial warming that began at the end of the last Ice Age, and that warming sends what we call a thermal pulse down through the polar ice sheets.
The flood was an accident, a geological catastrophe like an ice age or a meteor impact.