Cat is a noun

cat thsirt

feles, felis (noun, 3rd, fem) cat; marten/ferret/polecat/wild cat; mouser; inveigler, seducer, tom-cat; thief;

cattus, catti (noun, 2nd, masc) cat; wild cat; kind of trout; siege engine;

catus, cati (noun, 2nd, masc) cat; wild cat; kind of trout; siege engine; male cat;

gattus, gatti (noun, 2nd, masc) cat

gatta, gattae (noun, 1st, fem) cat (perhaps female); gateway, gap;

Chocolate 

If your cat has worms you need to take he or she to the veterinarian and the cat will either be given a shot or pills or even both.