Related Clues:

• Radiation unit
• 'Holy Toledo!'
• Highly regarded
• 'Outta sight!'
• Just ducky
• Swell
• Dosage unit at a reactor
• Dosage unit
• 'Peachy'
• 'Gosh, will you look at that!'
• Whopping
• Fantastic
• Outstanding
• Super
• 'That's amazing!'