| MPS | meconium plug syndrome; medial premotor system; Member of the Pharmaceutical Society; microbial prof... |
|---|---|
| RSP | removable silicone plug; ribose-5-phosphatase; right sacroposterior [fetal position] |
| EY | egg yolk; epidemiological year |
| EYA | egg yolk agar |
| LD-EYA | Lombard-Dowell egg yolk agar |
| TYB | TEST Yolk Buffer |
|---|---|
| VYS | Visceral yolk sac |
| YST | Yolk Sac Tumor |
| Yp | Yolk protein |
| YS | Yolk sacs |
| vaginal plug | A plug formed by the coagulation of semen; found in the vagina after copulation in certain animals, such as the baboon, rat, and squirrel. (05 Mar 2000) |
|---|---|
| meconium plug | <radiology> Functional colonic inertia, Diagnosis/Treatment: Gastrografin enema (Differential diagnosis: Hirschsprung disease, meconium ileus), F/U with another enema for confirmation, associated with maternal diabetes (12 Dec 1998) |
| mucous plug | A mass of mucus and cells filling the cervical canal between periods or during pregnancy; a mass of mucous occluding a main or lobar bronchus. (05 Mar 2000) |
| plug | 1. Any piece of wood, metal, or other substance used to stop or fill a hole; a stopple. 2. A flat oblong cake of pressed tobacco. 3. A high, tapering silk hat. 4. A worthless horse. 5. A block of wood let into a wall, to afford a hold for nails. Fire plug, a street hydrant to which hose may be attached. Hawse plug, a tapering valve, which turns in a case like the plug of a faucet. Origin: Akin to D. Plug, G. Pflock, Dan. Plok, plug, Sw. Plugg; cf. W. Ploc. Source: Websters Dictionary (01 Mar 1998) |
| epithelial plug | A mass of epithelial cells temporarily occluding an embryonic opening; the term is most commonly used with reference to the external nares. (05 Mar 2000) |
| laminated epithelial plug | An accretion of epithelia in the external auditory canal. Synonym: laminated epithelial plug. (05 Mar 2000) |
| white yolk | Yolk consisting of much finer particles than those of yellow yolk; thin layers of it lie between the zones of yellow yolk and form the latebra. (05 Mar 2000) |
| egg yolk | The stored nutrient of the egg and the yellow portion of the egg of a bird. (12 Dec 1998) |
| yellow yolk | The chief constituent of the yolk in a bird's egg; it consists of relatively coarse particles of stored food materials and is laid down in concentric zones with interposed thin layers of white yolk. (05 Mar 2000) |
| yolk | 1. The yellow part of an egg; the vitellus. 2. <zoology> An oily secretion which naturally covers the wool of sheep. <anatomy> Yolk cord, the umbilical vesicle. See Unbilical. Origin: OE. Yolke, yelke, yolke, yelke, AS. Geoloca, geoleca, fr. Geolu yellow. See Yellow Alternative forms: yelk. Source: Websters Dictionary (01 Mar 1998) |
| yolk cell | <cell biology> In those eggs in which the yolk is not distributed evenly (telolecithal eggs) the cells formed when cleavage reaches the yolk region can be termed yolk cells. (18 Nov 1997) |
| yolk cells | Primitive embryonic cell's lying between the endoderm and mesoderm; they probably give rise to the endothelium of vitelline vessels. (05 Mar 2000) |
| yolk cleavage | Segmentation of the vitellus. (05 Mar 2000) |
| yolk membrane | The membrane enveloping the yolk; specifically, the thickened cell membrane of large-yolked ova. Synonym: ovular membrane, vitelline membrane. Sometimes used to designate the zona pellucida of a mammalian ovum. Synonym: yolk membrane. (05 Mar 2000) |
| yolk sac | <embryology, ornithology> One of the set of extra embryonic membranes, growing out from the gut over the yolk surface, in birds formed from the splanchnopleure, an outer layer of splanchnic mesoderm and an inner layer of endoderm. (18 Nov 1997) |
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