Isotherombrose
Pronunciation : I*soth`er*om"brose
Part of Speech : n.
Etymology : [Iso- + Gr. qe`ros summer + 'o`mbros rain.] (Phys. Geog)
Definition : Defn: A line connecting or marking points on the earth's surface, which have the same mean summer rainfall.
Source : Webster's Unabridged Dictionary, 1913