noun
- A sea anemone, especially one of the genus Actinia; a marine animal with tentacles that resembles a flower.
Usage: biology; zoology; often used in scientific contexts
Examples
- The actinia clung to the rock with its muscular foot.
- Divers observed colorful actinias swaying in the ocean current.
- The actinia's tentacles retracted when touched.
- Scientists study actinia to understand how sea anemones reproduce.
- An actinia can be found in tide pools along the rocky shore.