1. a small wingless jumping insect that feeds on the blood of mammals and birds

Examples

• The dog was scratching because it had fleas.
• We found flea bites on our ankles after camping.
• The veterinarian recommended a flea treatment for our cat.
• Fleas can jump many times their own body length.
• The old carpet was infested with fleas.
• She bought a flea collar to protect her pet.