Definitions
from The Century Dictionary.
- noun A name sometimes given to a spirit-level (which see).
- noun A level or airway of former workings made use of in subsequent deeper mining operations for ventilating purposes.
Etymologies
Sorry, no etymologies found.
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Examples
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He spread his wings fully and did not move them as he climbed from air-level to air-level, but his long forked tail expanded and closed continuously.
White Shadows in the South Seas Frederick O'Brien 1900
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The air-level guidelines set by the E.P.A. take these factors into account and are more protective for younger classes than older ones.
NYT > Home Page By MIREYA NAVARRO 2011
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