| IMPETRATIONS | • impetrations n. Plural of impetration. • IMPETRATION n. seeking by entreaty. |
| NONPETROLEUM | • nonpetroleum adj. (Of fuel) Not petroleum-based, not containing petroleum. • NONPETROLEUM adj. not derived from petroleum. |
| PERPETRATING | • perpetrating v. Present participle of perpetrate. • PERPETRATE v. to bring about or carry out, as a crime or deception. |
| PERPETRATION | • perpetration n. The act of perpetrating. • perpetration n. Something (such as a crime) that is perpetrated. • PERPETRATION n. the act of perpetrating. |
| PERPETRATORS | • perpetrators n. Plural of perpetrator. • PERPETRATOR n. one who perpetrates. |
| PETRIFACTION | • petrifaction n. Petrification. • petrifaction n. An object that has become petrified. • petrifaction n. The condition of being petrified. |
| PETRIFACTIVE | • petrifactive adj. Having the quality of converting organic matter into stone; petrifying. • petrifactive adj. Pertaining to, or characterized by, petrifaction. • PETRIFACTIVE adj. petrifying, also PETRIFIC. |
| PETROCHEMIST | • petrochemist n. One who studies or works in petrochemistry. • PETROCHEMIST n. someone who studies petrochemistry or works in the petrochemical industry. |
| PETRODOLLARS | • petrodollars n. Plural of petrodollar. • petrodollars n. Money earned through the sale of petroleum. • PETRODOLLAR n. a dollar's worth of foreign exchange obtained by a petroleum exporting country through sales abroad. |
| PETROGENESES | • petrogeneses n. Plural of petrogenesis. • PETROGENESIS n. formation or development of rocks. |
| PETROGENESIS | • petrogenesis n. The branch of petrology dealing with the origin of igneous rocks. • PETROGENESIS n. formation or development of rocks. |
| PETROGENETIC | • petrogenetic adj. (Geology) Of or pertaining to petrogenesis, the creation of new rock. • PETROGENETIC adj. relating to petrogenesis. |
| PETROGLYPHIC | • petroglyphic adj. Of or pertaining to petroglyphy. • PETROGLYPHIC adj. of or like a petroglyph, an ancient rock-carving. |
| PETROGRAPHER | • petrographer n. A person practicing petrography. • PETROGRAPHER n. a practitioner of petrography. |
| PETROGRAPHIC | • petrographic adj. Relating to petrographs. • petrographic adj. Relating to petrography. • PETROGRAPHIC adj. relating to petrography, also PETROGRAPHICAL. |
| PETROLOGICAL | • petrological adj. Of or pertaining to petrology, the study of rock formation and composition. • PETROLOGICAL adj. relating to petrology, also PETROLOGIC. |
| PETROLOGISTS | • petrologists n. Plural of petrologist. • PETROLOGIST n. a student of petrology, the geological study of rocks. |
| PETROPHYSICS | • petrophysics n. (Geology, physics) The physics of rock, especially rock that acts as a reservoir for petroleum or other fluids. • PETROPHYSICS n. that branch of physics relating to the physical properties of rocks. |
| SALTPETREMAN | • SALTPETREMAN n. (historical) someone authorized to search for saltpetre; someone who prepares saltpetre. |
| SALTPETREMEN | • SALTPETREMAN n. (historical) someone authorized to search for saltpetre; someone who prepares saltpetre. |