Geology

n.	1.
	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.

Noun

1.

geology - a science that deals with the history of the earth as recorded in rocks

cosmical geology, crystallography, dynamic geology, geodesy, geodetics, geodynamics, geognosy, geographics, geography, geological chemistry, geological engineering, geomorphogeny, geomorphology, geophysics, geoscopy, geotectonic geology, historical geology, hydrogeology, mineralogical chemistry, mineralogy, mining engineering, mining geology, paleontological geology, pedology, petrochemistry, petrography, petrology, physical geography, physical geology, physiographic geology, physiography, soil mechanics, soil science, stratigraphic geology, stratigraphy