blue dragon

English

Noun

blue dragon (plural blue dragons)

  1. A species of nudibranch sea slug, Glaucus atlanticus, blue in colour and living in the pelagic zone of the ocean.
    Synonyms: blue sea dragon, sea swallow, blue angel, blue glaucus, dragon slug, blue sea slug, blue ocean slug
  2. A species of small, floating, blue nudibranch sea slug, Glaucus marginatus, looking very similar to Glaucus atlanticus.
  3. A species of nudibranch sea slug, Pteraeolidia ianthina, ranging in colours from blue, yellow, and green.

References

blue dragon on Wikipedia.Wikipedia