ISOGONICS

Noun

isogonics

plural of isogonic

Source: Wiktionary

ISOGONIC

I`so*gon"ic, a. Etym: [Iso- + Gr.

Definition: Pertaining to, or noting, equal angles. Isogonic lines (Magnetism), lines traced on the surface of the globe, or upon a chart, connecting places at which the deviation of the magnetic needle from the meridian or true north is the same.

I`so*gon"ic, a. (Zoöl.)

Definition: Characterized by isogonism.

Source: Webster’s Unabridged Dictionary 1913 Edition