petro-

¹

1. a combining form meaning “rock,” “stone,” used in the formation of compound words:

   petrology.

petro-

²

1. a combining form meaning “petroleum,” “the extraction and export of petroleum,” used in the formation of compound words:

   petrochemistry; petropower.

petro

³

[ pe-troh ]

adjective

1. of or relating to petroleum or the petroleum industry.

noun

1. Canadian. the federally owned petroleum industry.

petro-

combining_form

1. indicating stone or rock

   petrology

2. indicating petroleum, its products, etc

   petrochemical

3. of or relating to a petroleum-producing country

   petrostate

Word History and Origins

Origin of petro-¹

< Greek, combining form of pétra rock, pétros a stone

Origin of petro-²

Extracted from petroleum

Origin of petro-³

First recorded in 1970–75; independent use of petro- ²

Word History and Origins

Origin of petro-¹

from Greek petra rock or petros stone

Example Sentences

They predict the government of President Petro Poroshenko may not last another three months.

From The Daily Beast

MOSCOW, Russia — On Friday Ukrainian President Petro Poroshenko accepted President Vladimir Putin's peace plan for Ukraine.

From The Daily Beast

Petro Poroshenko proposes a utopian solution to the problem.

From The Daily Beast

Taking market share from Moscow would diminish its political leverage, while also weakening its petro-centric economy.

From The Daily Beast

According to opinion polls, the most popular leader in Ukraine and very possibly its next president is Petro Poroshenko.

From The Daily Beast

Pray tell me, Is this stern woman still upon the flaunt Of bold defiance?Petro.

From Project Gutenberg

Couldn't git nothing out of 'em except some more parrot-cackle: 'Vote same Petro.

From Project Gutenberg

Petro'nius Max'imus "poisoned" the emperor, and the empress killed Maximus.

From Project Gutenberg

In the infant, also, the petro-squamous and the squamo-mastoid suture are still patent.

From Project Gutenberg

Its wall was of boards, and the gray shingled roof jutted out overhead just as if inviting Eve and Petro to its shelter.

From Project Gutenberg