hippocampus /hip-ō-kamˈpəs/

1. A fish-tailed horse-like sea monster (mythology)
2. A genus of small fishes (family Syngnathidae) with horse-like head and neck, the seahorse
3. A raised curved trace on the floor of the lateral ventricle of the brain (anatomy)

hippocampˈal adjective (anatomy)

• downsized
• downsizer
• downsizers
• downsizes
• downsizing
• downsizings
• down south
• downspout
• downspouts
• Down's syndrome
• downstage
• downstair
• downstairs
• downstate
• downstates
• downstream
• downstroke
• downstrokes
• downswing
• downswings
• down the drain
• down the hatch
• down the line
• down-the-line
• down the road