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Webster 1913 Edition

Aeronautics

Aˊër-o-naut′ics

,
Noun.
The science or art of ascending and sailing in the air, as by means of a balloon; aërial navigation; ballooning.

Webster 1828 Edition

Aeronautics

AERONAUT'ICS

,
Noun.
The doctrine, science, or art of sailing in the air, by means of a balloon.

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