noun🔗Share옥탄Any of the eighteen isomeric aliphatic hydrocarbons (C8H18) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents."The car engine requires high octane fuel to prevent knocking and improve performance. "자동차 엔진은 노킹을 방지하고 성능을 향상시키기 위해 고옥탄 연료를 필요로 합니다.compoundsubstancechemistryfuelChat with AIVocabulary GamePractice Reading