Word Study
air-tight
CIDE DICTIONARY
air-tight, a.
- So tight as to be impermeable to air or other gases; as, an air-tight cylinder; -- said of containers. [1913 Webster]
- of such close construction as to have little leakage of air in or out; -- said of structures [WordNet 1.5]
- so thoroughly convincing as to be insusceptible to doubt; having no apparent counterarguments; -- of arguments or assertions [PJC]
air-tight, n.
A stove the draft of which can be almost entirely shut off. [1913 Webster]
For further exploring for "air-tight" in Webster Dictionary Online