Main Entry:

²fossil

Function:

noun

Date:

1736

1: a remnant, impression, or trace of an organism of past geologic ages that has been preserved in the earth's crust — compare living fossil2 a: a person whose views are outmoded : fogy b: something (as a theory) that has become rigidly fixed3: an old word or word element preserved only by idiom (as fro in to and fro)