villus

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villus

1. Zoology anatomy any of the numerous finger-like projections of the mucous membrane lining the small intestine of many vertebrates
2. any similar membranous process, such as any of those in the mammalian placenta
3. Botany any of various hairlike outgrowths, as from the stem of a moss

villus

[′vil·əs]
(anatomy)
A fingerlike projection from the surface of a membrane.
References in periodicals archive ?
Villiform teeth in elongate oval patch on vomer; preopercle with 19 small serrae on vertical limb, 2 serrae at angle slightly enlarged.
Maxilla distal end slightly convex with dorsal end rounded, ventral corner with low knob, reaching vertical at front edge of pupil; villiform teeth in triangular patch on vomer.
Jaw dentition as described for genus; vomer with triangular to heart-shaped patch of villiform teeth.
Jaw dentition as described for genus; vomer with villiform teeth in chevron-shaped band and in narrow band on palatines.
Jaw dentition as described for genus; vomer with triangular patch of villiform teeth; palatines with elongate band of villiform teeth.
Although villiform structures were not apparent, occasional tissue clefting was seen.
Although the neoplasm contained numerous capillary-sized vessels, clefted spaces and villiform structures were not apparent.
4) in head; teeth multiserial, an outer row of conical teeth in each jaw, largest anteriorly; 22 upper and 20 lower teeth on each side of jaw; a narrow band of villiform teeth lingual to outer row, in 2-3 irregular rows anteriorly, narrowing to a single row on side of jaws; tongue triangular with rounded tip; gill rakers long and slender, the longest on lower limb near angle about three-fourths length of longest gill filaments; nostril with a fleshy rim, more elevated on posterior edge and located at level of middle of pupil, slightly less than one-half distance from front of orbit to edge of upper lip.