isogonic

American  

[ahy-suh-gon-ik] / ˌaɪ səˈgɒn ɪk /

adjective

1. having or pertaining to equal angles.

2. noting or pertaining to an isogonal line.

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noun

1. isogonal line.

isogonic British  

/ ˌaɪsəʊˈɡɒnɪk /

adjective

1. maths having, making, or involving equal angles

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noun

1. Also called: isogonic line, isogonal line, isogone. physics an imaginary line connecting points on the earth's surface having equal magnetic declination

Etymology

Origin of isogonic

< Greek isogṓn ( ios ) having equal angles ( see iso-, -gon) + -ic

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Example Sentences

See Examples For:

isogonic

Hailey’s isogonic map of magnetic variation, published in 1701.

From "The Invention of Science" by David Wootton

But besides these variations which we have mentioned, there are changes steadily going on, by which the isodynamic, isogonic and isoclinic lines are permanently displaced on the surface of our planet.

From Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence by Thomas Bassnett

In this portion of the earth, in northern Asia, between the mountains of Werchojansk, Jakutsk, and the northern Korea, the isogonic lines form a remarkable closed system.

From COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 by Alexander von Humboldt

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