Phrase guide

blue dragon

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A species of nudibranch sea slug, Glaucus atlanticus, blue in colour and living in the pelagic zone of the ocean.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: blue sea dragon, sea swallow, blue angel, blue glaucus, dragon slug, blue sea slug, blue ocean slug

Antonyms: none provided

2

noun

Meaning 2

A species of small, floating, blue nudibranch sea slug, Glaucus marginatus, looking very similar to Glaucus atlanticus.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A species of nudibranch sea slug, Pteraeolidia ianthina, ranging in colours from blue, yellow, and green.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Used other than figuratively or idiomatically: see blue, dragon.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

5 source translations are retained for this English entry.

  • French: glaucus atlantique — Glaucus atlanticus
  • French: dragon bleu — Glaucus atlanticus
  • French: hirondelle de mer — Glaucus atlanticus
  • Polish: niebieski smok — Glaucus atlanticus
  • Polish: jaskółka morska — Glaucus atlanticus