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

Among the officials who are confirmed to attend her inauguration is a who’s who of the Latin American left, including Brazilian President Luiz Inácio “Lula” da Silva, Colombian President Gustavo Petro, Chilean President Gabriel Boric and Cuban President Miguel Díaz-Canel.

From Los Angeles Times

President Petro said the spyware was bought - in cash - from an Israeli surveillance firm during the government of his predecessor, Iván Duque.

From BBC

Mr Petro revealed the news in a televised address to the nation, saying that he had learned of the purchase through a confidential document.

From BBC

But Mr Petro queried how $11m in cash could have left the country without any trace of it being recorded in the published budget - and why.

From BBC

President Petro urged the attorney-general's office to investigate the purchase and what police may have used the spyware for.

From BBC