sponsors – n. a person or group who takes responsibility for something and supports it

conventional – adj. not nuclear

aviation – adj. having to do with aircraft

luxury – adj. expensive, having to do with comfort, ease or wealth

ballistic missile – n. a missile able to travel long distances across the earth

alloy – n. a mixture of metals

centrifuge – n. a machine used to separate substances

optical – adj. having to do with optics and vision, having to do with devices that use lenses or mirrors to produce images

evasion – n. to evade or avoid something