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Definition of seadragon

seadragon

/ˈsiːˌdræɡ.ən/
sea · drag · on
Plural:seadragons
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seadragon Lexical Profile

• noun

1

Any of several small, highly camouflaged marine fishes (family Syngnathidae, related to seahorses) endemic to the coastal waters of southern Australia, characterized by elaborate leaf-like or weed-like appendages used to blend into kelp beds.

Example

"Divers traveled to the kelp forests of South Australia hoping to photograph the elusive leafy seadragon."

2

A mythical, dragon-like creature or enormous serpentine monster believed in folklore to inhabit the ocean.

Example

"Ancient maritime maps often featured intricate illustrations of a terrifying seadragon lurking in uncharted oceanic waters."

Synonyms
View all synonyms for seadragon

• Nearby Words

seabreeze
seacoast
seacraft
seadragon
seafarer
seafaring
seafloor

Word Origin & Etymology

A compound of 'sea' and 'dragon', historically used to describe mythical oceanic monsters. In modern biology, the term was applied to specific Australian pipefishes in the 19th century due to their ornate, dragon-like camouflage.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Seadragon. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/seadragon
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