ウミウシ

noun

sea slug; nudibranch

Refers to various marine gastropods, especially nudibranchs. The term is used broadly for colorful sea slugs.

See also: ナマコ

• ウミウシは色いろ鮮あざやかな種しゅ類るいが多おおい。

  Many sea slug species are brightly colored.

• ダイビング中ちゅうに珍めずらしいウミウシを見みつけた。

  I found a rare sea slug while diving.