航空,航空学,航空术
Aviation \A`vi*a"tion\, n. The art or science of flying.
aviation n 1: the aggregation of a country's military aircraft [syn: {air power}] 2: the operation of aircraft to provide transportation 3: the art of operating aircraft [syn: {airmanship}] 4: travel via aircraft; "air travel involves too much waiting in airports"; "if you've time to spare go by air" [syn: {air travel}, {air}]