isochasm

Noun

Meaning

A line connecting places on the earth's surface at which there is the same mean frequency of auroras.

Source: Webster's dictionary

Synonyms

isotherm isogram isarithm isopleth isogon contour line isochrone isohel isoline isohypse isoheight isocline isophote isopach isochor
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Close letter words and terms

isocetane isochar isocharge isochasmic isocheim isocheimal