geologic adj 1: of or relating to or based on geology; "geological formations"; "geologic forces" [syn: {geological}, {geologic}]
Geologic \Ge`o*log"ic\, Geological \Ge`o*log"ic*al\, a. [Cf. F. g['e]ologique.] Of or pertaining to geology, or the science of the earth. [1913 Webster]