Definition of "eel" in English

noun

1. Any freshwater fish of the order Anguilliformes, which are elongated and resemble snakes.

2. A European eel (Anguilla anguilla).

3. Various other animals that resemble true eels, chiefly in shape:

4. Someone or something that is sneaky and/or hard to catch.

   • That Dennis is a right eel, he always seems to slip away from the scene at the right time.

verb

1. (intransitive) To fish for eels.

2. (intransitive) To move with a sinuous motion like that of an eel.