1. plural of roarer; things or beings that roar loudly
2. horses affected with roaring, a respiratory condition causing loud breathing sounds
Usage: veterinary; equestrian

Examples

• The lions were mighty roarers that could be heard across the savanna.
• The motorcycle engines were real roarers as they revved up for the race.
• The veterinarian examined the stable for any roarers among the racing horses.
• Thunder roarers filled the sky during the violent storm.
• The old truck’s engine made it one of the loudest roarers on the highway.
• Several roarers in the herd had to be treated for their breathing problems.