villus


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vil·lus

 (vĭl′əs)
n. pl. vil·li (vĭl′ī)
1. Biology A minute projection arising from a mucous membrane, especially:
a. One of the numerous vascular projections of the small intestine.
b. One of the fingerlike projections of the chorion that contribute to the formation of the placenta in mammals.
2. Botany A fine, hairlike epidermal outgrowth.

[Latin, shaggy hair.]

villus

(ˈvɪləs)
n (usually plural) , pl villi (ˈvɪlaɪ)
1. (Zoology) zoology anatomy any of the numerous finger-like projections of the mucous membrane lining the small intestine of many vertebrates
2. (Anatomy) zoology anatomy any of the numerous finger-like projections of the mucous membrane lining the small intestine of many vertebrates
3. (Zoology) any similar membranous process, such as any of those in the mammalian placenta
4. (Botany) botany any of various hairlike outgrowths, as from the stem of a moss
[C18: from Latin: shaggy hair]

vil•lus

(ˈvɪl əs)

n., pl. vil•li (ˈvɪl aɪ)
1. any of the fingerlike projections on the surface of certain membranes, esp. on the mucous membrane of the small intestine, functioning to increase the area for the absorption, secretion, or exchange of materials.
2. any of the long, soft, straight hairs covering the fruit, flowers, and other parts of certain plants.
[1695–1705; < Latin: shaggy hair, thick nap]

vil·lus

(vĭl′əs)
Plural villi (vĭl′ī)
A small projection on the surface of a mucous membrane, especially that of the small intestine.

villus

(pl. villi) A minute fingerlike projection. Huge numbers line the small intestine, vastly increasing its surface area.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.villus - a minute hairlike projection on mucous membranevillus - a minute hairlike projection on mucous membrane
chorionic villus - one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta
appendage, outgrowth, process - a natural prolongation or projection from a part of an organism either animal or plant; "a bony process"
Translations

vil·lus

n. vellosidad, vello, proyección filiforme que crece en una superficie membranosa;
aracnoid ______ aracnoidea;
chorionic ______ -es coriónicas;
intestinal ______ intestinal.
References in periodicals archive ?
INTRODUCTION: Chorionic villus sampling (CVS) is the gold standard invasive procedure for first trimester prenatal diagnosis.
The number of syncytiocapillar membranes was from 1 to 3 in each villus.
PATIENT'S CLAIM The ObGyn did not offer amniocentesis or chorionic villus sampling (CVS), and failed to inform the parents that the chance of a 37-year-old woman having a child with a chromosomal aberration was 1.
Villus height was measured from the tip of the villi to the villus crypt junction, and crypt depth was defined as the depth of the invagination between adjacent villi.
Some 30,000 women a year in the UK undergo amniocentesis or chorionic villus sampling (CVS) to detect possible problems with a pregnancy.
Chorionic villus sampling, to detect genetic abnormalities in the embryo or fetus in the first trimester.
Bischoff said Biocept is running a clinical evaluation study at centers nationwide to compare the results of the test with those of standard chorionic villus sampling in a group of pregnant women.
The presence in the sera of celiac disease (CD) patients of anti-actin autoantibodies (AAAs) has been suggested as a marker of severe intestinal villus atrophy (1).
Current prenatal testing guidelines suggest offering amniocentesis or chorionie villus sampling to women aged 35 years and older, but these guidelines were designed in the 1970s, they noted.
Stuart Logan, from the Institute of Child Health, London, and colleagues compared nine screening options for Down's syndrome, looking at how well they performed in terms of cost and in the risk of losses of healthy fetuses during amniocentesis and chorionic villus sampling.
Using a test known as chorionic villus sampling, the researchers confirmed that the fetus also would be born with SCID.