unleaded petrol
- noun
- /ʌnˈliːd ˈpɛtrəl/
- UK
- When choosing a fuel for your vehicle, make sure to buy unleaded petrol for cleaner air quality.
Examples
-
At some stages, there were not enough filling stations pumping unleaded petrol to meet the growing consumer demand.
Academic text (2005) -
Most modern cars require unleaded petrol to operate efficiently and reduce harmful emissions.
-
The government has mandated that all new cars must use unleaded petrol to prevent lead pollution.
Synonyms
Fuel for cars that does not contain lead
Antonyms
Surface Forms
Morphology
The meaning 'petrol that does not contain lead' is directly and transparently derived from combining 'unleaded' (without lead) with 'petrol' (fuel). The negation prefix 'un-' and the literal senses of the constituents make the concept immediately comprehensible to learners who know both words; similar constructions exist in many languages.
Etymology
Unleaded petrol began as a name when people stopped adding lead to petrol to make cars and the air cleaner, so the fuel was literally 'without added lead'.