Answer:
A rat is an animal which has a long tail and looks like a large mouse.
This was demonstrated in a laboratory experiment with rats.
2. COUNTABLE NOUN
If you call someone a rat, you mean that you are angry with them or dislike them, often because they have cheated you or betrayed you.
[informal, disapproval]
What did you do with the gun you took from that little rat Turner?
Synonyms: rogue, scoundrel [old-fashioned], heel [slang], cad [old-fashioned, informal, British]
Step-by-step explanation: