sea anemone

American  

noun

1. any sedentary marine animal of the phylum Coelenterata, having a columnar body and one or more circles of tentacles surrounding the mouth.

---

sea anemone British  

noun

1. any of various anthozoan coelenterates, esp of the order Actiniaria, having a polypoid body with oral rings of tentacles See also actinia

---

sea anemone Scientific  

1. Any of numerous, often brightly colored cnidarians of the class Anthozoa, having flexible cylindrical bodies with tentacles surrounding a central mouth. Sea anemones are related to jellyfish and corals, but have no free-swimming (medusoid) stage, and resemble flowers.

---

Etymology

Origin of sea anemone

First recorded in 1735–45

Example Sentences

He receives live sea anemone, which he presents tableside to guests so they can better understand what they are eating.

From The Wall Street Journal • Oct. 18, 2025

The cherished coastal activity is a great opportunity to learn about the Puget Sound ecosystem, look closely at alien sea anemone, the egg cases of moon snail and other ocean oddities.

From Seattle Times • Jun. 6, 2024

The researchers observed this association in the wild and wanted to know if the fish can also distinguish between the two sea anemone groups in captivity.

From Science Daily • Mar. 11, 2024

"This is the first instance where we've observed a fluorescent protein dictating the color of a sea anemone, or any marine invertebrate species," said Deheyn, who served as senior author of the paper.

From Science Daily • Mar. 11, 2024

He blinked, forgetting Jon for a moment as he noticed how the photographer had captured a bright orange and black clown fish nestled in a pale sea anemone.

From "Shooting Kabul" by N. H. Senzai