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Freon (n.)
[Freon 词源字典]
1932, proprietary name in U.S. for fluorocarbons used in refrigeration technology. "The name was apparently constructed from
fre(eze)
+
-on
used as an arbitrary suffix" [Flood].
[Freon etymology, Freon origin, 英语词源]
[Freon 词源字典]