noun ·Uncommon ·College level

Definitions

Noun

1. 1
   A hole in any surface that allows air or other gases to pass, especially an opening in the surface of a frozen lake etc.
2. 2
   a hole that allows the passage of air wordnet
3. 3
   An air pocket.
4. 4
   a local region of low pressure or descending air that causes a plane to lose height suddenly wordnet
5. 5
   The blowhole of a whale.

Synonyms

All synonyms

aerospaceaerosphereairair ductair passageair pocket