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isogonic

Line breaks: iso|gon¦ic
Pronunciation: /ˌʌɪsə(ʊ)ˈɡɒnɪk
 
/

Definition of isogonic in English:

adjective

Geography
Indicating or connecting points of the earth’s surface at which the magnetic declination is the same.
Example sentences
  • By 1701 Edmond Halley had dashed these hopes, showing that in the western North Atlantic, for instance, the isogonic lines (of constant variation) run almost east-west and so are independent of longitude.

Origin

mid 19th century: from Greek isogōnios 'equiangular' + -ic.

Definition of isogonic in:

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