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fossil

American  
[fos-uhl] / ˈfɒs əl /

noun

  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 a markedly outdated or old-fashioned person or thing.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.


adjective

  1. of the nature of a fossil.

    fossil insects.

  2. belonging to a past epoch or discarded system; antiquated.

    a fossil approach to economics.

fossil British  
/ ˈfɒsəl /

noun

    1. a relic, remnant, or representation of an organism that existed in a past geological age, or of the activity of such an organism, occurring in the form of mineralized bones, shells, etc, as casts, impressions, and moulds, and as frozen perfectly preserved organisms

    2. ( as modifier )

      fossil insects

  1. informal

    1. a person, idea, thing, etc, that is outdated or incapable of change

    2. ( as modifier )

      fossil politicians

  2. linguistics a form once current but now appearing only in one or two special contexts, as for example stead , which is found now only in instead ( of ) and in phrases like in his stead

  3. obsolete any rock or mineral dug out of the earth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

fossil Scientific  
/ fŏsəl /
  1. The remains or imprint of an organism from a previous geologic time. A fossil can consist of the preserved tissues of an organism, as when encased in amber, ice, or pitch, or more commonly of the hardened relic of such tissues, as when organic matter is replaced by dissolved minerals. Hardened fossils are often found in layers of sedimentary rock and along the beds of rivers that flow through them.

  2. See also index fossil microfossil trace fossil


fossil Cultural  
  1. 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.


Discover More

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!”

Other Word Forms

  • fossillike adjective
  • subfossil noun

Etymology

Origin of fossil

First recorded in 1555–65; from Latin fossilis “dug up,” from foss(us) “dug” (past participle of fodere “to dig”) + -ilis -ile ( def. ); replacing earlier fossile, from French

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

BP anticipates a write-down of up to $5 billion due to its renewable energy investments as it shifts focus back to fossil fuels.

From Barron's

Congress appeared to be closer than ever to passing a bipartisan bill that could speed the permitting process both for fossil fuel projects and renewables.

From Barron's

Congress appeared to be closer than ever to passing a bipartisan bill that could speed the permitting process both for fossil fuel projects and renewables.

From Barron's

“These protea plants go back in the fossil record like 300 million years,” Hartman said.

From Los Angeles Times

In the colder parts of the United States, most homes rely on natural gas and other fossil fuels for their heating.

From BBC