From Longman Dictionary of Contemporary Englishsea anemoneˈsea aˌnemone noun [countable] HBFa small brightly coloured sea animal that sticks onto rocks and looks like a flower
Examples from the Corpus
sea anemone• A hermit crab carrying a sea anemone around on its shell.• Why the sea anemone stays there and whether it gains anything from this relationship is not known. 