1. large blue or green flies that are attracted to decaying matter
2. blue cornflowers or other blue flowers
3. jellyfish with blue, balloon-like bodies that float on the ocean surface
Usage: marine biology

Examples

• The garbage can was swarming with bluebottles in the summer heat.
• She swatted at the bluebottles buzzing around the kitchen.
• The field was dotted with bright bluebottles and other wildflowers.
• Children picked bluebottles to make bouquets for their mothers.
• Beachgoers were warned about bluebottles washing up on shore.
• The bluebottles’ stings can be quite painful to swimmers.
• Dead fish on the beach attracted clouds of bluebottles.