Nemesis /nemˈi-sis/ (Gr myth)

1. The Greek goddess of retribution
2. (without cap) retributive justice
3. Something that cannot be achieved
4. A rival or opponent who cannot be beaten

• spintronic
• spintronics
• spinulate
• spinule
• spinules
• spinulescent
• spinuliferous
• spinulose
• spinulous
• spiny
• spiny anteater
• spiny anteaters
• spiny lobster
• spiny lobsters
• spir-
• spiracle
• spiracles
• spiracula
• spiracular
• spiraculate
• spiraculum
• spiraea
• spiraeas
• spiral
• spiral arm