rock pool
From Longman Dictionary of Contemporary EnglishRelated topics: Oceanographyrock poolˈrock pool noun [countable] British EnglishHEO a small pool of water between rocks by the sea SYN tide pool American EnglishExamples from the Corpusrock pool• A bottle swept up to his feet and rolled in a rock pool.• Others crouched over rock pool, teasing out sea anemones.