fossils is a form of:

Fossil



noun
1.
(the hardened remains of animals or plants, esp. prehistoric ones, (per sons) antiquated, old fashioned) ហ្វូស៊ីល, នៃសត្វនោះ (សាណីភូត)
  • fossil fuel
    - បាសាណឺភូតប្រេង
ENGLISH MEANING
noun
1.
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.
2.
A substance dug from the earth.
3.
A person whose views and opinions are extremely antiquated; one whose sympathies are with a former time rather than with the present.
adjective
1.
Dug out of the earth; as, fossil coal; fossil salt.
2.
Like or pertaining to fossils; contained in rocks, whether petrified or not; as, fossil plants, shells.