FOSSIL

I. adjective see: bed Date: 1604 preserved from a past geologic age , being or resembling a ~, of or relating to ~ fuel, II. noun Date: 1736 a remnant, impression, or trace of an organism of past geologic ages that has been preserved in the earth's crust, 2. a person whose views are outmoded ; fogy , something (as a theory) that has become rigidly fixed, an old word or word element preserved only by idiom (as fro in to and fro )