Standard Lemma guide

leptocephalus

noun · 2 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

The flat, transparent larva of an eel, originally thought to be a distinct species.

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

slender transparent larva of eels and certain fishes

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: larva

History

Etymology

From (obsolete) genus name Leptocephalus, equivalent to Ancient Greek λεπτός (leptós, “thin, slim”) + κεφαλή (kephalḗ, “head”).