Available Definitions:
1) a. - Dug out of the earth; as, fossil coal; fossil salt.
2) a. - Like or pertaining to fossils; contained in rocks, whether petrified or not; as, fossil plants, shells.
3) n. - A substance dug from the earth.
4) n. - The remains of an animal or plant found in stratified rocks. Most fossils belong to extinct species, but many of the later ones belong to species still living.
5) n. - A person whose views and opinions are extremely antiquated; one whose sympathies are with a former time rather than with the present.