† orthodromyn.

Origin: A borrowing from French. Etymon: French orthodromie.

Etymology: < French orthodromie route forming part of a great circle (1691 as ortodromie ) < ortho- ortho- comb. form + -dromie ( < ancient Greek δρόμος (see -drome comb. form) + French -ie -y suffix³). Compare ancient Greek ὀρθοδρομεῖν to run straight forward. Compare orthodromics n. N.E.D. (1903) enters this under orthodromic and indicates the stress as orˈthodromy.

Obsolete. rare.

A route forming part of a great circle. Also: = orthodromics n.

ΘΚΠ

society > travel > travel by water > directing or managing a ship > [noun] > types of navigation

great circle sailing1595

loxodromics1704

oblique sailing1704

orthodromics1704

right sailing1704

parallel sailing1705

orthodromy1706

plane sailing1749

composite sailing1850

loxodromy1855

radio navigation1926

hyperbolic navigation1945

satnav1970

hyperbolic system1972

1706 Phillips's New World of Words (new ed.) Orthodromy, such a Course, which is the most direct and shortest distance between any two Points on the Surface of the Globe.

1871 L. Colange Zell's Pop. Encycl. II. 531/2 Orthodromy, art or operation of sailing on a great circle.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online December 2019).

单词	orthodromy
释义	† orthodromyn. Origin: A borrowing from French. Etymon: French orthodromie. Etymology: < French orthodromie route forming part of a great circle (1691 as ortodromie ) < ortho- ortho- comb. form + -dromie ( < ancient Greek δρόμος (see -drome comb. form) + French -ie -y suffix³). Compare ancient Greek ὀρθοδρομεῖν to run straight forward. Compare orthodromics n. N.E.D. (1903) enters this under orthodromic and indicates the stress as orˈthodromy. Obsolete. rare. A route forming part of a great circle. Also: = orthodromics n. ΘΚΠ society > travel > travel by water > directing or managing a ship > [noun] > types of navigation great circle sailing1595 loxodromics1704 oblique sailing1704 orthodromics1704 right sailing1704 parallel sailing1705 orthodromy1706 plane sailing1749 composite sailing1850 loxodromy1855 radio navigation1926 hyperbolic navigation1945 satnav1970 hyperbolic system1972 1706 Phillips's New World of Words (new ed.) Orthodromy, such a Course, which is the most direct and shortest distance between any two Points on the Surface of the Globe. 1871 L. Colange Zell's Pop. Encycl. II. 531/2 Orthodromy, art or operation of sailing on a great circle. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online December 2019). < n.1706
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