1. (informal) anything complex, detailed or confusing 
2. The science or study of rockets and their design

Encyclopedia: Rocket science

• candied fruit
• candle
• candle flame
• candle holder
• candleberry
• candlefish
• candlelight
• candlelit
• candlemaker
• Candlemas
• Candlemas Day
• candlenut
• candlepin
• candlepin bowling
• candlepins
• candlepower
• candlepower unit
• candler
• candlesnuffer
• candlestick
• candlestick tulip
• candlewick
• candlewood
• candor
• candour