air level
English edit
Noun edit
air level (plural air levels)
- (dated) A spirit level.
- Used other than figuratively or idiomatically: air level.
- When diving, take care to monitor not just your air level, but that of your partner.
References edit
- “air level”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.