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orthodromy

noun
or·​thodro·​my | \ ˈȯ(r)thəˌdrōmē, ȯ(r)ˈthädrəmē\
plural -es

Definition of orthodromy

: the act or art of great-circle sailing

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History and Etymology for orthodromy

French orthodromie, from orthodrom- (from Greek orth- + -dromos -drome) + -ie -y

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