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Definition of swamp eel

swamp eel

Plural:swamp eels
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• noun

1

Any of various elongated, eel-like ray-finned fishes of the order Synbranchiformes, characterized by the absence of pectoral and pelvic fins, found primarily in tropical and subtropical freshwater swamps, marshes, and slow-moving rivers.

Example

"Researchers are monitoring local waterways to prevent the invasive Asian swamp eel from disrupting native aquatic ecosystems."

Synonyms
View all synonyms for swamp eel

Word Nuance & Usage

Despite their common name and elongated bodies, swamp eels are not true eels (Anguilliformes) but belong to a separate order of ray-finned fishes (Synbranchiformes).

• Nearby Words

swallowtail
swami
swamp
swamp eel
swamp lily
swamp milkweed
swamp rose

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Swamp eel. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/swamp-eel
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