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fold

 [fōld]
plica; a thin margin curved back on itself, or doubling.
amniotic fold the folded edge of the amnion where it rises over and finally encloses the embryo.
aryepiglottic fold a fold of mucous membrane extending on each side between the lateral border of the epiglottis and the summit of the arytenoid cartilage.
circular f's the permanent transverse folds of the luminal surface of the small intestine.
costocolic fold a fold of peritoneum passing from the left colic flexure to the adjacent part of the diaphragm; called also phrenicocolic ligament.
gastric f's the series of folds in the mucous membrane of the stomach.
gluteal fold the crease separating the buttocks from the thigh.
head fold a fold of blastoderm at the cephalic end of the developing embryo.
interdigital fold the free border of the web connecting the bases of adjoining digits.
lacrimal fold a fold of mucous membrane at the lower opening of the nasolacrimal duct.
mucosal fold (mucous fold) a fold of mucous membrane.
nail fold the fold of palmar skin around the base and sides of the nail of a finger or toe.
neural fold one of the paired folds lying on either side of the neural plate that form the neural tube.
semilunar fold of conjunctiva a mucous fold at the medial angle of the eye.
serosal fold (serous fold) a fold of serous membrane.
spiral fold a spirally arranged elevation in the mucosa of the first part of the cystic duct.
tail fold a fold of the blastoderm at the caudal end of the developing embryo.
transverse f's three permanent transverse folds in the rectum.
ventricular fold (vestibular fold) a false vocal cord.
vestigial fold a pericardial fold enclosing the remnant of the embryonic left anterior cardinal vein.
vocal f's true vocal cords.

fold

(fōld),
1. A ridge or margin apparently formed by the doubling back of a lamina. Synonym(s): plica
2. In the embryo, a transient elevation or reduplication of tissue in the form of a lamina.

fold

(fōld)
n.
1. A crease or ridge apparently formed by folding, as of a membrane; a plica.
2. In the embryo, a transient elevation or reduplication of tissue in the form of a lamina.

fold

(fōld)
1. A ridge or margin apparently formed by the doubling back of a lamina.
See also: plica
2. In the embryo, a transient elevation or reduplication of tissue in the form of a lamina.

fold

(fōld)
A ridge or margin apparently formed by the doubling back of a lamina.
References in periodicals archive ?
In the limit we have a 3-cycle each vertex have different color which can not be folded any more, since any other folding will collapse an edge to a vertex.
In his laboratory, a researcher uses a pipette to pick out the properly folded structures.
The translucent glass channels of the north facade, understood conceptually as folded planes, are punctured by operable windows held in steel frames cantilevered from the floor.
On the other hand, folded arms often do say something, for better or for worse, about the person before the camera.
This classroom activity can be used to describe areas of folded polygons in terms of a standard unit of measure (inches or centimetres).
Turn the folded side down and make marks halfway along the two sides (figure 3).
Fold the remaining two pieces of ribbon in half, and sew the folded ends just inside of where you stitched the strap.
And a carefully folded paper crane can often be found hanging from the ceilings or doorways of Japanese shrines and temples.
A minute later, the disorderly mound has turned into a neat pile of perfectly folded items.
Christoph Lueder, chief designer and project architect, developed a modern and visionary response to the 1998 competition brief: a continuous strip of concrete folded six times, each fold creating a new level on the triangular site.
Proteins can also form stable, partially folded states that are thought to resemble intermediate states along the protein folding pathway.
With its double floor, the M134 could support a number of seating heights and storage possibilities, as well as a relatively low, one-box "monospace" variant with seats that folded into the floor when more space was needed.