acaleph
/ˈækəlɛf/
noun
- A jellyfish or other similar marine animal with stinging tentacles, belonging to the group Acalephae.
- The beach was closed after a swarm of acalephs washed ashore.
- An acaleph's sting can be painful, so swimmers should be cautious.
- Marine biologists study the acaleph to understand ocean ecosystems.