Downy hair on the body of the fetus and newborn baby. It is the first hair to be produced by the fetal hair follicles, usually appearing on the fetus at about five months of gestation. It is very fine, soft, and usually unpigmented. Although lanugo is normally shed before birth around seven or eight months of gestation, it is sometimes present at birth. This is not a cause for concern: lanugo will disappear within a few days or weeks of its own accord. "Lanugo" is the Latin word for down, like the fine small hairs of plants.
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SYN: downy hair. [L. down, wooliness, from lana, wool]

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la·nu·go lə-'n(y)ü-(.)gō n a dense cottony or downy growth of hair specif the soft downy hair that covers the fetus of some mammals

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fine hair covering the body and limbs of the human fetus. It is most profuse at about the 28th week of gestation and is shed around 40 weeks.

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la·nu·go (lə-nooґgo) [L.] [TA] the fine hair on the body of the fetus; called also down, downy hair, lanugo hair, and primary hair.

Medical dictionary. 2011.

Look at other dictionaries:

  • Lanugo — ICD 10 Q84.2 ICD 9 …   Wikipedia

  • Lanugo — Clasificación y recursos externos CIE 10 Q84.2 CIE 9 757.4 …   Wikipedia Español

  • lanugo — ● lanugo nom masculin (latin lanugo, duvet, de lana, laine) Duvet recouvrant normalement la peau du fœtus. ⇒LANUGO, subst. masc. MÉD. ,,Duvet très fin qui recouvre tout le corps du fœtus, à l exception des paumes des mains et des plantes des… …   Encyclopédie Universelle

  • lanugo — LANÚGO s.n. 1. (biol.) Păr fin care acoperă unele regiuni ale corpului la făt. ♦ Fire de păr din alte regiuni decât din cele obişnuite. 2. Puf (la plante, fructe etc.) – Din lat., fr. lanugo. Trimis de LauraGellner, 17.05.2004. Sursa: DEX 98 … …   Dicționar Român

  • LANUGO — per blanditias, a grandibus natu tractata. Suet. Claud. Ner. c. 34. Quam, (matris suae amitam) cum visitaret: et illa tractans lanuginem eius, ut assolet iam grandis natu (ubi etiam legi potest, iam grandibus natu) per blanditias forte dixisset,… …   Hofmann J. Lexicon universale

  • lanugo — m. anat. Pelo blando y suave que cubre el feto desde el quinto mes de embarazo hasta el nacimiento. Medical Dictionary. 2011. lanugo vel …   Diccionario médico

  • lanugo — s. m. [Medicina] Penugem que cobre o corpo do feto, com exceção das palmas das mãos e das plantas dos pés.   ‣ Etimologia: latim lanugo, inis, lã, penugem …   Dicionário da Língua Portuguesa

  • Lanugo — La*nu go, n. [See {Lanuginose}.] (Anat.) The soft woolly hair which covers most parts of the mammal fetus, and in man is shed before or soon after birth. [1913 Webster] …   The Collaborative International Dictionary of English

  • Lanūgo — (lat.), Wollhaarüberzeug der Haut des Embryo vom vierten Monat an …   Pierer's Universal-Lexikon

  • Lanūgo — (lat.), das wollige, erste Haarkleid menschlicher Embryonen und Neugeborner, ein regelmäßig, aber nur noch vorübergehend auftretendes Rudiment einer ehemals starken Behaarung des ganzen Körpers. Der L. setzt sich aus seinen, anfangs hellblonden… …   Meyers Großes Konversations-Lexikon

  • Lanugo — Lanūgo (lat.), s. Wollhaare …   Kleines Konversations-Lexikon

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