petrography

n. 岩石记述学

pestle, pet, pet name, pet shop, pet subject, petal, petalled (US petaled), petard, peter, petit bourgeois, petite, petition, petitioner, petrel, petrifaction, petrify, petro-, petrochemical, petrodollar, petroglyph, petrol, petrol bomb, petrol fumes, petrol tank, petroleum, petrologist, petrology, petticoat, pettifogging, pettily, pettiness, pettish, pettishly, pettishness, petty, petty cash, petty larceny, petty officer, petulance, petulant,