air cavity
noun
An air-filled pocket or passage.
Origin
Late 18th century.
- interprovincial
- interquartile
- interracial
- interracially
- interregional
- interregnum
- interrelate
- interrelatedness
- interrelation
- interrelationship
- interrog.
- interrogate
- interrogation
- interrogational
- interrogation mark
- interrogation point
- interrogative
- interrogatively
- interrogator
- interrogatory
- interrupt
- interrupted
- interrupter
- interruptible
- interruption