The process of converting, or of being converted, into a fossil. / (figuratively, by extension) The process of becoming fixed, unchanging, and out of date.

The mineralized remains of an animal or plant. / (paleontology) Any preserved evidence of ancient life, including shells, imprints, burrows, coprolites, and organically-produced chemicals.

Any fuel derived from hydrocarbon deposits such as coal, petroleum, natural gas and, to some extent, peat; these fuels are non-renewable, and their burning generates the greenhouse gas carbon dioxide.

A small city, the county seat of Wheeler County, Oregon, United States.

(anatomy) Either lateral half of the nasal cavity.

(astronomy) an area of intense tectonic activity on the surface of Mars; photographed in detail by Mars Express

Alternative spelling of fossilize

(transitive) to make into a fossil / (intransitive) to become a fossil / (figuratively, by extension, intransitive) To become inflexible or outmoded.

Britain standard spelling of fossilization.

Any ancient remains of a plant or animal that lived during a specific geological period and that can be used to date the containing rocks.