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Smart Definition
Etymology
Pronunciation
petrolero
oil
petrol
gasoline
+
-ero
adjective suffix
Petrolero means oil (as an adjective) and can be thought of as petrol0 (gasoline0) + -ero1 (adjective suffix1).
adjective
  1. oil
    Related to petroleum or oil
    La industria petrolera es muy importante para la economía del país. // The oil industry is very important for the country's economy.
noun
  1. oil tanker
    A tanker ship used to transport oil
    El petrolero transporta millones de barriles de crudo. // The oil tanker transports millions of barrels of crude oil.