Definition that contains pools
- genus actinia a genus of sea anemone common in rock pools
- actinia a genus of sea anemone common in rock pools
- genus eriocaulon type genus of the Eriocaulaceae: rushlike aquatic or marginal perennials usually found in shallow waters of acid lakes and pools and bogs
- eriocaulon type genus of the Eriocaulaceae: rushlike aquatic or marginal perennials usually found in shallow waters of acid lakes and pools and bogs
- fish ladder a series of ascending pools providing a passage for salmon to swim upstream past a dam