hippocampus
nounUK /ˌhɪp.əˈkæm.pəs/
US /ˌhɪp.əˈkæm.pəs/
A part inside your brain that helps you remember things and find your way.
When you learn a new song, your hippocampus helps you store it in your memory.
OTHER MEANINGS
2. A small sea animal with a head that looks like a horse and a curled tail.
The seahorse, or hippocampus, clung to the seaweed with its tail.
3. In Greek mythology, a creature with the front of a horse and the tail of a fish that pulled Poseidon's chariot.
The mosaic showed a hippocampus racing through the waves.
4. A genus of small marine fish commonly known as seahorses.
Scientists studied the hippocampus genus to learn how seahorses reproduce.