Learn How to Pronounce lanugo
(Listen to the audio above for the stress and intonation)
The Expert's Take

Meaning and Context
Lanugo is the fine, soft, and typically unpigmented downy hair that develops on a human fetus during gestation, representing the first hair produced by fetal hair follicles. This primary hair growth usually emerges around the fifth month of pregnancy, forming a delicate protective layer that helps to regulate body temperature and may assist in binding the vernix caseosa—a waxy, protective skin coating—to the skin. Its presence is a normal and temporary stage of fetal development, and it is most often shed in utero during the late third trimester, though it is common to see remnants on premature infants or full-term newborns, particularly on the shoulders, back, and ears. The persistence of lanugo beyond the newborn period can sometimes be associated with certain medical conditions, such as anorexia nervosa or other forms of severe malnutrition, where the body may regrow this primitive hair as an insulating response. Understanding this fetal hair is key to topics in neonatal development, pediatric health, and dermatology.
Common Mistakes and Alternative Spellings
The term "lanugo" is consistently spelled L-A-N-U-G-O in modern English and medical terminology. It is a direct borrowing from the Latin lānūgō, meaning "down" or "wooliness." Common misspellings often arise from phonetic confusion, resulting in errors such as "lanugo" (incorrectly doubling the 'n'), "lanugo" (substituting an 'e' for the second 'u'), or "lanugo" (omitting the 'g'). Another frequent error is the misspelling "lunago," likely due to the visual similarity of 'u' and 'n'. It is also occasionally confused with the similar-sounding but entirely different term "languor," which denotes a state of tiredness or inertia. When searching for information, using the correct spelling is crucial for accessing accurate medical and developmental resources.
Example Sentences
The neonatal nurse explained that the fine lanugo covering the premature baby's back was completely normal and would likely rub off within a few weeks.
During the detailed ultrasound, the expectant parents learned that their fetus had developed lanugo, a sign of progressing maturation of the skin and hair follicles.
In cases of severe eating disorders, the appearance of lanugo on the face and torso can be a telling clinical sign of the body's attempt to conserve heat.
The biology textbook described lanugo as an evolutionary vestige that protects the delicate fetal skin from the constant exposure to amniotic fluid.
After birth, the midwife noted the remnants of lanugo on the newborn's ears, reassuring the parents that it was a common feature of many healthy infants.
Sources and References
For the medical term "lanugo," I consulted its Wikipedia entry and the Oxford English Dictionary (OED) for authoritative definitions and pronunciation guides. I also listened to the audio pronunciation on Forvo and used YouGlish to hear it used in medical or scientific discussions.
- https://en.wikipedia.org/wiki/Lanugo
- https://forvo.com/word/lanugo/
- https://youglish.com/pronounce/lanugo/english
- https://www.oed.com/dictionary/lanugo_n
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