Fos·sil a.
1. Dug out of the earth; as, fossil coal; fossil salt.
3. Paleon. Like or pertaining to fossils; contained in rocks, whether petrified or not; as, fossil plants, shells.
Fossil copal, a resinous substance, first found in the blue clay at Highgate, near London, and apparently a vegetable resin, partly changed by remaining in the earth.
Fossil cork, Fossil flax, Fossil paper, or Fossil wood, varieties of amianthus.
Fossil farina, a soft carbonate of lime.
Fossil ore, fossiliferous red hematite.