26984 words

rat

5 definitions • 5 examples
1
a small rodent, larger than a mouse, that has a long tail and is considered to be harmful:

Examples:

I think we've got rats (= there are rats in our house).
2
an unpleasant person who deceives others or is not loyal
3
abbreviation for rapid antigen test: a test done using a small medical device that tests whether or not there is a particular substance, gene, etc. in a sample (= a small amount of a substance):

Examples:

A RAT is a quick home test to check if you may have Covid-19.
It is important to store RATs at the right temperature.
4
a small animal that looks like a large mouse:

Examples:

A rat was sniffing around the trash.
5
an unpleasant person who deceives or is not loyal

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