名詞 cataclysm:

1. a sudden violent change in the earth's surface
   同義詞：catastrophe
2. an event resulting in great loss and misfortune
   同義詞：calamity, catastrophe, disaster, tragedy

cat.a.clysm

n.（名詞）
A violent upheaval that causes great destruction or brings about a fundamental change.See Synonyms at disaster
巨變：引起巨大破壞或重大改變的激烈變動參見 disaster
A violent and sudden change in the earth`s crust.
災(zāi)變：地殼的劇烈而突然的改變
A devastating flood.
災(zāi)難性的大洪水

來源：
French cataclysme
法語 cataclysme
from Latin cataclysmos [deluge]
源自 拉丁語 cataclysmos [大洪水]
from Greek kataklusmos
源自 希臘語 kataklusmos
from katakluzein [to inundate]
源自 katakluzein [泛濫]
kata- [intensive pref.] * see cata-
kata- [強(qiáng)調(diào)性前綴] *參見 cata-
kluzein [to wash away]
kluzein [沖走]

【引伸】
cat.aclys.mic