rat has definitions from the fields of zoology,work
1
[ noun ] (zoology) any of various long-tailed rodents similar to but larger than a mouse

Used in print

(Richard F. McLaughlin, et al., "A study of the...)

Verloop ( ' 48 ; ' 49 ) found these shunts in the human_being but was unable to find them in rats .

Ellis , Grindlay and Edwards ( ' 52 ) also were unable to find them in rats .

(Jacob Robbins et al., "The thyroid-stimulating...)

There is some reason to think that thyroglobulin synthesis may proceed independently of iodination , for in certain transplantable tumours of the rat thyroid containing essentially no iodinated thyroglobulin , a protein that appears to be thyroglobulin has been observed in ultracentrifuge experiments ( Wolff , Robbins and Rall , 1959 ) .

(E. Gellhorn, "Prolegomena to a theory of the emotions"...)

But even in relatively primitive laboratory animals such_as the rat , sex_activity closely identified with the hypothalamus and the visceral_brain is enhanced by the neocortex .

2
[ noun ] (work) someone who works (or provides workers) during a strike

Related terms

worker scab

3
[ verb ] (work) take the place of work of someone on strike

Synonyms

blackleg scab

Related terms

work scab

4
[ verb ] give away information about somebody

Examples

"He told on his classmate who had cheated on the exam"

5
[ verb ] catch rats, esp. with dogs

Related terms

capture

6
[ verb ] give (hair) the appearance of being fuller by using a rat

Related terms

pad

7
[ noun ] a person who is deemed to be despicable or contemptible

Examples

"only a rotter would do that" "kill the rat" "throw the bum out" "you cowardly little pukes!" "the British call a contemptible person a `git'"

Related terms

unpleasant_person

8
[ verb ] (work) employ scabs or strike breakers in (an industry)

Related terms

hire industry

9
[ verb ] desert one's party or group of friends, for example, for one's personal advantage

Related terms

defect rotter

10
[ noun ] a pad (usually made of hair) worn as part of a woman's coiffure

Related terms

pad hairdo

11
[ noun ] one who reveals confidential information in return for money
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