[fos-uh
l] 
| 1. | any remains, impression, or trace of a living thing of a former geologic age, as a skeleton, footprint, etc. |
| 2. | a markedly outdated or old-fashioned person or thing. |
| 3. | a linguistic form that is archaic except in certain restricted contexts, as nonce in for the nonce, or that follows a rule or pattern that is no longer productive, as the sentence So be it. |
| 4. | of the nature of a fossil: fossil insects. |
| 5. | belonging to a past epoch or discarded system; antiquated: a fossil approach to economics. |
| fos·sil (fŏs'əl) n.
[From Latin fossilis, dug up, from fossus, past participle of fodere, to dig.] |
The evidence in rock of the presence of a plant or an animal from an earlier geological period. Fossils are formed when minerals in groundwater replace materials in bones and tissue, creating a replica in stone of the original organism or of their tracks. The study of fossils is the domain of paleontology. The oldest fossils (of bacteria) are 3.8 billion years old.
Note: The term is used figuratively to refer to a person with very old-fashioned or outmoded viewpoints: “That old fossil thinks that men should wear suits at the theater!”
fossil
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