ISOGEOTHERMAL; ISOGEOTHERMIC
I`so*ge`o*ther"mal, I`so*ge`o*ther"mic, a.
Defn: Pertaining to, having the nature of, or marking, isogeotherms; as, an isogeothermal line or surface; as isogeothermal chart. — n.
Defn: An isogeotherm.
ISOGONIC
I`so*gon"ic, a. Etym: [Iso- + Gr.
Defn: 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.
ISOGONIC
I`so*gon"ic, a. (Zoöl.)
Defn: Characterized by isogonism.
ISOGONISM
I*sog"o*nism, n. Etym: [Iso- + Gr. (Zoöl.)
Defn: The quality of having similar sexual zooids or gonophores and dissimilar hydrants; — said of certain hydroids.
ISOGRAPHIC
I`so*graph"ic, a.