petrocalcicOf or relating to a kind of soil horizon formed when secondary calcium carbonates or other carbonates accumulate in the subsoil to the extent that the soil becomes cemented into a hardpan.
petrocapitalismThose aspects of capitalism that involve the petrochemical industry.
petrocarbonCarbon that originated in petroleum hydrocarbons.
petrochronologyThe dating of rock or sediment samples by determining the ages of the minerals within them to reconstruct the geological processes and conditions under which they formed.
PetrockA male given name from the Celtic languages of historical use.
PetrockstoweA village and civil parish in Torridge district, Devon, England (OS grid ref SS5109).
petroclivalRelating to the petrous part of the temporal bone and the clivus
petrocortyneAny of a group of cytotoxic polyacetylenes extracted from marine sponges of the family Petrosiidae
petrocultureA culture that is dependant on and shaped by oil and petrochemicals.
petroculturesThe study of petroculture; the study of how culture is dependent on oil and petrochemicals.
petrocurrencyThe currency of an oil-producing nation which tends to vary in value against other currencies in line with changes in the price of oil.
petrodentineA very hard, hypermineralized form of dentine.
petrodieselDiesel derived from petroleum (contrasted with biodiesel).
petrodollarMoney (either notionally or specifically in dollars or other currencies) earned from the sale of oil, often especially as considered among a national economy's principal revenue streams.
petrodollarsMoney earned through the sale of petroleum.
PetroffA transliteration of the Bulgarian surname Петров (Petrov).
petrofictionfiction that focuses on the oil industry as a major element.
petroformA shape or pattern made by arranging large rocks and boulders over a relatively wide area.
petrogarchSomeone who is part of a small group that controls the petroleum industry, and hence has power over lives and governments similar to the powers of an oligarch.
petrogenesisRock formation, especially the formation of igneous or metamorphic rocks.
petrogeneticOf or pertaining to petrogenesis, the creation of new rock.
petroleumA flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface.
petroleurOne who lights fires with petrol, especially (historical) a revolutionary who attacked public buildings in this way in Paris in 1871.
petrolheadA person who is overly reliant on the use of their car, resisting any suggestion to use other means of transport.
petrolianaVintage or collectible items related to petrol stations, or to garages generally, such as petrol pumps, oil cans, enamel signs relating to the motor trade, etc.
petronelA short but large-caliber, heavy 16th- and 17th-century firearm that used a matchlock or wheellock mechanism, intermediate between the arquebuse and pistol.
petroniaA rock sparrow, of species Petronia petronia, sole species of its genus, found from western Mediterranean lands to central China.
PetronianOf, relating to, or characteristic of Petronius (Gaius Petronius Arbiter, c. 27–66 AD), a Roman courtier during the reign of Nero, generally believed to be the author of the Satyricon.
PetroniumAn ancient city in modern Turkey, now Bodrum
PetroniusA male given name from Latin, of historical usage, notably borne by a Roman courtier during the reign of Nero and the patron saint of Bologna.
petronoiaFear and/or paranoia due to the economics of oil and petroleum.
PetropavlA city (population 200,000) on the Ishim River; the capital city of North Kazakhstan, Kazakhstan.