noun🔗SharePentaneAn aliphatic hydrocarbon of chemical formula C5H12; either of the three isomers n-pentane, methyl-butane (isopentane), and di-methyl-propane (neopentane); volatile liquids under normal conditions."The lab technician carefully measured out a small amount of pentane for the experiment. "Le technicien de laboratoire a soigneusement mesuré une petite quantité de pentane pour l'expérience.compoundsubstancechemistryfuelChat with AIVocabulary GamePractice Reading