Phrase guide

sea slug

noun · 3 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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No pronunciation record was provided for this word.

1

noun

Meaning 1

Any marine invertebrate with a visual resemblance to terrestrial slugs (land slugs).

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any soft-bodied marine gastropod mollusks of the order Nudibranchia.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: nudibranch, nudi

Antonyms: none provided

3

noun

Meaning 3

any of various marine gastropods of the suborder Nudibranchia having a shell-less and often beautifully colored body

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: nudibranch

Antonyms: none provided

Broader terms: gastropod, univalve

Narrower terms: Hermissenda crassicornis

History

Etymology

From sea + slug.

Across languages

Translations

10 source translations are retained for this English entry.

  • Chinese Mandarin: 海蛞蝓 (hǎikuòyú) — marine mollusc
  • Finnish: merietana — marine mollusc
  • Japanese: ウミウシ (umiushi) — marine mollusc
  • Māori: rori — marine mollusc
  • Polish: ślimak morski — marine mollusc
  • Portuguese: lesma-do-mar — marine mollusc
  • Portuguese: lesma-marinha — marine mollusc
  • Thai: ทากทะเล (tâak-tá-lee) — marine mollusc
  • Finnish: vapaakiduskotilo — mollusk of the order Nudibranchia
  • Polish: nagoskrzelny — mollusk of the order Nudibranchia