Main Entry:

ge·ol·o·gy

Pronunciation:

\jē-ˈä-lə-jē\

Function:

noun

Inflected Form(s):

plural ge·ol·o·gies

Etymology:

New Latin geologia, from ge- + -logia -logy

Date:

1735

1 a: a science that deals with the history of the earth and its life especially as recorded in rocks b: a study of the solid matter of a celestial body (as the moon)2: geologic features3: a treatise on geology

— ge·ol·o·gist \-jist\ noun