HIPPOCAMPUS Scrabble 24 Words With Friends 29 Definition noun a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle. noun seahorses. — synonyms: genus_Hippocampus See all 304 words you can make from HIPPOCAMPUS → 11-letter words Words starting with H Words ending with S ← Unscramble different letters