glaciation
[`glesɪ'eʃən]
n. 冻, 川

1. Whether global climate will cool enough to produce the long-overdue glaciation or remain warm enough to avoid that fate is impossible to predict.
   至球气候底够冷、期迟但终究临，维温暖而期，而。
2. The development of an atypical Hirnantia-brachiopod Fauna and the onset of glaciation in the late Ordovician of Gondwana/ Owen E. Sutcliffe...[ et al.].
   冈瓦纳古陆奥陶统典型赫特贝属-腕足动群育川始.
3. Studies of certain fossil distributions and of the pollen of certain temperate plants suggest decreases of a degree or two in both summer and winter temperatures and, therefore, that we may be in the declining climatic phase leading to 某些石布某些温带植花研究，夏冬温两，，正气温日低、川灭绝即将临程。

glaciation
[ noun ]

1. the condition of being covered with glaciers or masses of ice; the result of glacial action

<noun.state>
Agassiz recognized marks of glaciation all over northern Europe

2. the process of covering the earth with glaciers or masses of ice

<noun.process>

Glaciation \Gla`ci*a"tion\, n.
1. Act of freezing.

2. That which is formed by freezing; ice.

3. The process of glaciating, or the state of being
glaciated; the production of glacial phenomena.