| PETRODOLLAR | • petrodollar n. (Oil industry, chiefly in the plural, also attributively) Money (either notionally or specifically in… • PETRODOLLAR n. a dollar's worth of foreign exchange obtained by a petroleum exporting country through sales abroad. |
| PETRODROMES | • PETRODROME n. an African elephant shrew. |
| PETROGENIES | • PETROGENY n. the study of the origin of rocks. |
| PETROGLYPHS | • petroglyphs n. Plural of petroglyph. • PETROGLYPH n. an ancient rock-carving. |
| PETROGLYPHY | • petroglyphy n. The art or process of carving figures or inscriptions on stone. • PETROGLYPHY n. the art of carving on rocks. |
| PETROGRAPHY | • petrography n. (Petrology) The branch of petrology that deals with the scientific description and classification of rocks. • petrography n. The art of writing on stone. • PETROGRAPHY n. the description and classification of rocks. |
| PETROLATUMS | • petrolatums n. Plural of petrolatum. • PETROLATUM n. petroleum jelly. |
| PETROLEUSES | • PETROLEUSE n. (French) a female petroleur, one who makes use of petroleum for incendiary purposes. |
| PETROLHEADS | • petrolheads n. Plural of petrolhead. • PETROLHEAD n. a motor vehicle enthusiast. |
| PETROLOGIES | • petrologies n. Plural of petrology. • PETROLOGY n. the geological study of rocks. |
| PETROLOGIST | • petrologist n. A geologist who specializes in petrology. • PETROLOGIST n. a student of petrology, the geological study of rocks. |
| PETROMONEYS | • PETROMONEY n. money from oil revenues. |
| PETROMONIES | • PETROMONEY n. money from oil revenues. |
| PETRONELLAS | • PETRONELLA n. a Scottish country dance. |
| PETROPOUNDS | • petropounds n. Plural of petropound. • PETROPOUNDS n. money from oil revenues. |
| PETROSTATES | • petrostates n. Plural of petrostate. • PETROSTATE n. a small oil-rich country in which institutions are weak and wealth and power are concentrated in the hands of the few. |