I1S1O1G2O1N1E1
8 points
ISOGONE is validvalid
a line on a map used to show characteristics of the earth's magnetic field [n ISOGONES]
a line indicating the earth's magnetic field, also ISOGONAL, ISOGONIC [n -S]
a line on a map used to show characteristics of the earth's magnetic field [n ISOGONES]
a line indicating the earth's magnetic field, also ISOGONAL, ISOGONIC [n -S]