Geology
Pronunciation : Ge*ol"o*gy
Part of Speech : n.;
Etymology : [Gr. -logy: cf. F. g?ologie.]
Definition : 1. The science which treats: (a) Of the structure and mineral constitution of the globe; structural geology. (b) Of its history as regards rocks, minerals, rivers, valleys, mountains, climates, life, etc.; historical geology. (c) Of the causes and methods by which its structure, features, changes, and conditions have been produced; dynamical geology. See Chart of The Geological Series.
2. A treatise on the science.
pl. Geologies.
Source : Webster's Unabridged Dictionary, 1913