There are multiple definitions - click on the translation that matches your context.

quarentenar

verbo

full

quarantine

verb

Definitions of quarantine

to keep a ship, animal, plant, or a person that might have a disease away from others for a period of time so that the disease cannot spread. The term can also be used in relation to computer viruses.

We quarantine all newly arrived pets for about three weeks, and get rid of fleas and diseases they may have.