The term 'SOME JELLYFISH' can be broken down into two words: 'SOME' and 'JELLYFISH'. The crossword solution for the term is 'Medusas', which is a seven-letter word. Medusas are a type of JELLYFISH that are found in the oceans around the world. They have a bell-shaped body with tentacles that hang down from the bottom. They are usually transparent and can range in size from a few inches to several feet in length. They feed on small fish and plankton and can be dangerous to humans if they come into contact with them.