Definition of "clean-burning" []

• Leaving little contamination while consuming fuel (adjective)

WordNet. Princeton University. 2010.

• "Better, clean-burning cookstoves have been around since the 1980s when aid groups such as UNICEF and CARE-Kenya first started distributing them."
• "Consider pairing any of these ideas, or a personal peace ensemble of your own with a sweet-smelling, clean-burning, top-selling soy candle like WoodWick's Twinkling Spice Holiday Candle."
• "International energy companies such as Shell and Chevron are investing billions of dollars to develop Australian natural gas fields to feed a projected surge in demand from Asia for clean-burning fuels."