1. plural of hippocampus; curved structures in the brain important for memory formation and spatial navigation
Usage: anatomy; neuroscience
2. plural of hippocampus; small marine fish with horse-like heads and prehensile tails
Usage: zoology

Examples

• The hippocampi are essential for forming new memories.
• Damage to both hippocampi can result in severe amnesia.
• Scientists studied the hippocampi of taxi drivers to understand spatial memory.
• The aquarium’s hippocampi swayed gently among the coral.
• Male hippocampi carry the eggs in their brood pouches.
• The hippocampi in the research lab showed increased activity during learning tasks.