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A marine mammal native to the northern Pacific Ocean, Enhydra lutris.

(computing theory) A tree (data structure) set up to facilitate searching.

A flowering plant, Silene maritima.

A large species of seal, found mainly around Antarctica, Mirounga leonina, famous for being the largest ever carnivoran mammal.

plural of sea urchin

(mythology) A large and aggressive creature living in or under the sea that attacks ships. / Any huge marine animal.

The plant Eryngium maritimum. / More generally, any of several species of plants in the genus Eryngium. / The plant Acanthus ebracteatus.

A seal belonging in the Otariidae family; a fur seal or a sea lion, differing from the true seals in having small, visible ears and the ability to walk on land.

plural of sea anemone