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Definition of Isochasm
1. n. A line connecting places on the earth's surface at which there is the same mean frequency of auroras.
Definition of Isochasm
1. Noun. (geography) A line connecting places on the Earth's surface that have the same mean frequency of auroras. ¹
¹ Source: wiktionary.com
Definition of Isochasm
1. a contour line showing auroral displays [n -S]
Medical Definition of Isochasm
1.
Lexicographical Neighbors of Isochasm
Literary usage of Isochasm
Below you will find example usage of this term as found in modern and/or classical literature:
1. Under the Rays of the Aurora Borealis: In the Land of the Lapps and Kvæns by Sophus Tromholt (1885)
"This interesting chart, which he has called an " isochasm " chart, and the lines
denoted ..."
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