1. the larvae of darkling beetles, commonly used as food for pets and livestock

Examples

• She fed mealworms to her pet lizard every morning.
• The pet store sells dried mealworms for bird owners.
• Mealworms are rich in protein and make excellent chicken feed.
• The biology class observed mealworms transforming into beetles.
• Many fish enthusiasts use mealworms as bait.
• The farmer bought mealworms to supplement his chickens’ diet.