petro-
/ˈpɛtrəʊ/combiningForm
1Of rock; relating to rocks: petrography
2Relating to petroleum: petrodollar
Origin
sense 1 from Greek petros 'stone', petra 'rock'; sense 2 from petroleum.
- blabbermouth
- black
- black acre
- Black Act
- black Africa
- black African
- black alder
- black-a-lyre
- black amber
- Black America
- Black American
- blackamoor
- blackamoor's tooth
- black and blue
- black and tan
- black-and-tannery
- Black and Tans
- black and white
- black-and-white colobus
- black ant
- blackarm
- black armband
- Black Army
- black art
- black-artist