Solutions Coal miner's discovery has 12 entries with similar clues

• 3-letter words
• oregroundbreaking discovery?
• 4-letter words
• hoaxWorthless discovery
• ahasCries of discovery
• 5-letter words
• x-rayRontgen's discovery
• 6-letter words
• strikeYet it may mean miners work harder
• eurekaShriek of discovery
• 7-letter words
• exploreInvestigate for the purpose of discovery
• dopplerAustrian physicist, d. 1853, famous for his discovery of the effect of movement on perceived wavelengths
• 9-letter words
• davy-lampSafety lamp used by coal miners
• 10-letter words
• mares-nestA discovery that turns out to be worthless
• 12-letter words
• breakthroughImportant discovery
• wellwellwellComment upon a revealing discovery, and a description of the starred answers