1. plural of hydra: small freshwater animals with tube-shaped bodies and tentacles around the mouth
Usage: biology
2. plural of hydra: problems or situations that seem to multiply when attempts are made to solve them
Usage: figurative
3. plural of hydra: mythological water monsters with multiple heads that regrow when cut off
Usage: mythology

Examples

• The biology students observed several hydras under the microscope.
• Hydras can regenerate lost body parts within days.
• The corruption scandal became one of those hydras that kept growing despite investigations.
• Ancient Greek myths tell of heroes battling fierce hydras.
• The pond contained numerous hydras feeding on small organisms.
• Like mythical hydras, the company’s problems seemed to multiply with each solution attempt.