noun a substance dug from the earth.
2. fossil ·adj dug out of the earth; as, fossil coal; fossil salt.
3. fossil ·adj like or pertaining to fossils; contained in rocks, whether petrified or not; as, fossil plants, shells.
4. fossil ·noun a person whose views and opinions are extremely antiquated; one whose sympathies are with a former time rather than with the present.
5. fossil ·noun 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.