Cite
 

Meaning of isogonal line

isog'onal line'

Pronunciation: (ī'su-gōn"), [key]
  1. an imaginary line, or one drawn on a map, connecting all points of equal magnetic declination. Also called isoganal, i&syl;so&syl;goneisogonic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.