Meaning of air bladder | Babel Free

Definitions

1. An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density.
2. A type of packing material that consists of an airtight bag full of air, used to cushion fragile items.

Examples

“The company used to be notorious for excessive packaging, and social media grew littered with examples: three pairs of socks wrapped in puffy air bladders[…]”

CEFR level