Phrase guide

vernix caseosa

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 waxy or "cheesy" white substance found coating the skin of newborn humans.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, obstetrics, sciences

Examples

  • 1888 Austin Flint: A Text-book of human physiology The protecting coat of vernix caseosa allows the skin to perform its office in utero, and at birth, when this coating is removed, the surface is found in a condition perfectly adapted to extrauterine existence. It is not probable that the vernix caseosa is necessary to facilitate the passage of the child into the world, for the parts of the mother are always sufficiently lubricated with mucous secretion.
  • 1983 Carol Laderman: Wives and Midwives: Childbirth and Nutrition in Rural Malaysia She rubbed his body with coconut oil to remove the vernix caseosa. A heavy coating of vernix caseosa, she told me later, is a sure sign that the couple have been having intercourse during the latter part of pregnancy, a practice she considers dangerous. She believes the white vernix caseosa to be an accumulation of semen.

Meaning relationships

Synonyms: vernix, birthing custard

Antonyms: none provided

2

noun

Meaning 2

a white cheeselike protective material that covers the skin of a fetus

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: vernix

Antonyms: none provided

Broader terms: material, stuff

History

Etymology

From Latin vernix (“varnish”) + caseosa (“cheesy”).

Across languages

Translations

8 source translations are retained for this English entry.

  • Bulgarian: верникс казеоза (verniks kazeoza) — substance
  • Bulgarian: верникс (verniks) — substance
  • Chinese Mandarin: 胎脂 (tāizhī) — substance
  • Czech: plodový mázek — substance
  • Finnish: lapsenkina — substance
  • French: vernix caseosa — substance
  • Japanese: 胎脂 (Taishi) — substance
  • Polish: maź płodowa — substance