Air harbor
a harbor for hydroplanes, especially seaplanes.
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- Air hardening
noting any metal, especially alloy steel, that can be hardened from above its transformation point by cooling in air. noun a process of hardening high-alloy steels by heating and cooling in a current of air Compare oil hardening
- Airhead
an area in enemy territory or in threatened friendly territory, seized by airborne troops for bringing in supplies and additional troops by airdrop or landing. Slang. a scatterbrained, stupid, or simple-minded person; dolt. Contemporary Examples Sure, the critics never quite cottoned to him; they always insinuated that he was an airhead, a blank. Are We […]
- Air hoist
a pneumatic hoist.
- Air hole
an opening to admit or discharge air. a natural opening in the frozen surface of a river or pond. . Historical Examples At Mill Grove he came near losing his life, on a duck-shooting expedition, by falling through an air hole in the ice. Famous Men of Science Sarah K. Bolton There will be areas […]
- Air horn
a horn activated by compressed air.