Similar words: isopropyl, ethylene, acetylene, polyethylene, propellent, appropriateness, tylenol, entropy. Meaning: ['prəʊpɪlɪːn] 
n. a flammable gas obtained by cracking petroleum; used in organic synthesis.
n. a flammable gas obtained by cracking petroleum; used in organic synthesis. 
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More similar words: isopropyl, ethylene, acetylene, polyethylene, propellent, appropriateness, tylenol, entropy, allotropy, moneylender, lycanthropy, misanthropy, philanthropy, energy level, scalene, vileness, wholeness, idleness, prop, splenetic, suppleness, lengthened, proper, props, nimbleness, singleness, benevolent, bottleneck, humbleness, feebleness.