1. periods of isolation imposed on people, animals, or things that may have been exposed to a contagious disease
2. places where people or animals are kept in isolation to prevent the spread of disease

1. isolates or restricts the movement of people, animals, or things to prevent the spread of disease
Usage: third person singular present

Examples

• The health department imposed strict quarantines on all travelers from affected regions.
• Ships were held in quarantines at the port for two weeks.
• The government quarantines anyone who tests positive for the virus.
• Pet quarantines help prevent the spread of rabies.
• The hospital quarantines patients with infectious diseases.
• Border officials established temporary quarantines for incoming passengers.
• The veterinarian quarantines sick animals to protect the healthy ones.