Word.ws English Dictionary

sea adder

sea adder noun: a European fifteen-spined stickleback, a fish of species Spinachia spinachia (syn. Gasterosteus spinachia).

Noun

sea adder (plural sea adders)

  1. A European fifteen-spined stickleback, a fish of species Spinachia spinachia (syn. Gasterosteus spinachia).
  2. A tanglefish, or greater pipefish (Syngnathus acus).
  3. (obsolete) A sea serpent.

Forms of sea adder

pluralsea adders
alternative formsea-adder

Origin of sea adder

From sea + adder. Compare Old English mere-næddra (“sea-adder, lamprey”).

Questions about sea adder

What does sea adder mean?
Sea adder means a European fifteen-spined stickleback, a fish of species Spinachia spinachia (syn. Gasterosteus spinachia).
What part of speech is sea adder?
Sea adder is a noun.
What is the plural of sea adder?
The plural of sea adder is sea adders.

Words near sea adder in the dictionary

  1. se-tenants
  2. se.
  3. sea
  4. sea acorn
  5. sea acorns
  6. sea adder
  7. sea adders
  8. sea air
  9. sea anchor
  10. sea anchors
  11. sea anemone

Source and license

Adapted from Wiktionary: sea adder (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “sea adder.” Word.ws, https://word.ws/sea_adder. Based on Wiktionary, CC BY-SA 4.0.