vernix caseosa

noun

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

Meanings

nounvernix caseosa (uncountable)
  1. uncountablemedicineThe waxy or "cheesy" white substance found coating the skin of newborn humans.
    2 more 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.

    Synonyms: vernix, birthing custard

Synonyms & antonyms

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

More synonyms by meaning

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

Similar

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latinvernix“varnish”
  2. Englishvernix caseosa

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

Full word history & related roots →

Translations

Bulgarian верникс казеоза, верникс
  • верникс казеоза (verniks kazeoza)substance
  • верникс (verniks)substance
Chinese Mandarin 胎脂
  • 胎脂 (tāizhī)substance
Czech plodový mázek
  • plodový mázeksubstance
Finnish lapsenkina
  • lapsenkinasubstance
French vernix caseosa
  • vernix caseosasubstance
Japanese 胎脂
  • 胎脂 (Taishi)substance
Polish maź płodowa
  • maź płodowasubstance
Cite this entry
APA

vernix caseosa. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/vernix%20caseosa

MLA

“vernix caseosa.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/vernix%20caseosa. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “vernix caseosa,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/vernix%20caseosa.

Source: vernix caseosa on Wiktionary, CC BY-SA 4.0.