PETRO-


Meaning of PETRO- in English

/ ˈpetrəʊ; NAmE ˈpetroʊ/ combining form (in nouns, adjectives and adverbs)

1.

connected with rocks :

petrology

2.

connected with petrol / gas :

petrochemical

••

WORD ORIGIN

sense 1 from Greek petros stone, petra rock; sense 2 from petroleum .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.