Related Clues:

• Physicist's focus
• Cyclotron particle
• Sliver
• Microscopic bit
• Subject for Fermi
• Minuscule amount
• Small building block
• Pointillist's stroke
• Minute part
• Tiny powerhouse
• Part of a semicolon
• Write hastily
• Source of energy
• Polka ending?
• Smashable thing