I checked the other two dictionaries and google translate

In google translate, fondue is translated as 火鍋：

In another German dictionary:

[French fondue, really= melted fondre]

a. It is a Swiss dish. a small piece of bread dips into melting and floating mixture of hard cheese, white wine and seasoning and serves as a dish.

b. It is a short form of meat fondue. 

c. Chinese fondue (google traslate translated as 中國火鍋）, use soup instead of oil.

in:

In an English dictionary

of

In another English dictionary,

fondue is said to be derived from a French verb fondre's past participle:

in: