Standard Lemma guide

vitellus

noun · 4 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 contents or substance of the ovum; egg yolk.

Definition source: English Wiktionary via Wiktextract

Usage: archaic, countable, uncountable

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Perisperm in an early condition.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biology, botany, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An oily substance adhering to the spores of Lycopodium.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biology, botany, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: yolk

Antonyms: none provided

Broader terms: food, nutrient

History

Etymology

From Latin vitellus (“the yolk of an egg”). Doublet of veal.