| NP | nasopharynx, nasopharyngeal; near point; necrotizing pancreatitis; neonatal-perinatal; neuritic plag... |
|---|---|
| NPD | narcissistic personality disorder; natriuretic plasma dialysate; negative pressure device; Niemann-P... |
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| A2C | apical two-chamber [view] |
| A4C | apical four-chamber [view] |
| AER | Apical Ectodermal Ridge |
|---|---|
| AMA-1 | Apical Membrane Antigen-1 |
| AMV | Apical membrane vesicles |
| SAM | shoot apical meristem |
| AP | apical |
| pick | 1. To throw; to pitch. "As high as I could pick my lance." (Shak) 2. To peck at, as a bird with its beak; to strike at with anything pointed; to act upon with a pointed instrument; to pierce; to prick, as with a pin. 3. To separate or open by means of a sharp point or points; as, to pick matted wool, cotton, oakum, etc. 4. To open (a lock) as by a wire. 5. To pull apart or away, especially with the fingers; to pluck; to gather, as fruit from a tree, flowers from the stalk, feathers from a fowl, etc. 6. To remove something from with a pointed instrument, with the fingers, or with the teeth; as, to pick the teeth; to pick a bone; to pick a goose; to pick a pocket. "Did you pick Master Slender's purse?" (Shak) "He picks clean teeth, and, busy as he seems With an old tavern quill, is hungry yet." (Cowper) 7. To choose; to select; to separate as choice or desirable; to cull; as, to pick one's company; to pick one's way; often with out. "One man picked out of ten thousand." 8. To take up; especially, to gather from here and there; to collect; to bring together; as, to pick rags; often with up; as, to pick up a ball or stones; to pick up information. 9. To trim. To pick at, to tease or vex by pertinacious annoyance. To pick a bone with. See Bone. To pick a thank, to curry favor. To pick off. To pluck; to remove by picking. To shoot or bring down, one by one; as, sharpshooters pick off the enemy. To pick out. To mark out; to variegate; as, to pick out any dark stuff with lines or spots of bright colours. To select from a number or quantity. To pick to pieces, to pull apart piece by piece; hence, to analyze; especially, to criticize in detail. To pick a quarrel, to give occasion of quarrel intentionally. To pick up. To take up, as with the fingers. To get by repeated efforts; to gather here and there; as, to pick up a livelihood; to pick up news. Origin: OE. Picken, pikken, to prick, peck; akin to Icel. Pikka, Sw. Picka, Dan. Pikke, D. Pikken, G. Picken, F. Piquer, W. Pigo. Cf. Peck, Pike, Pitch to throw. 1. A sharp-pointed tool for picking; often used in composition; as, a toothpick; a picklock. 2. <chemical> A heavy iron tool, curved and sometimes pointed at both ends, wielded by means of a wooden handle inserted in the middle, used by quarrymen, roadmakers, etc.; also, a pointed hammer used for dressing millstones. 3. A pike or spike; the sharp point fixed in the center of a buckler. "Take down my buckler . . . And grind the pick on 't." 4. Choice; right of selection; as, to have one's pick. "France and Russia have the pick of our stables." (Ld. Lytton) 5. That which would be picked or chosen first; the best; as, the pick of the flock. 6. A particle of ink or paper imbedded in the hollow of a letter, filling up its face, and occasioning a spot on a printed sheet. 7. That which is picked in, as with a pointed pencil, to correct an unevenness in a picture. 8. The blow which drives the shuttle, the rate of speed of a loom being reckoned as so many picks per minute; hence, in describing the fineness of a fabric, a weft thread; as, so many picks to an inch. Pick dressing, in cut stonework, a facing made by a pointed tool, leaving the surface in little pits or depressions. Pick hammer, a pick with one end sharp and the other blunt, used by miners. Origin: F. Pic a pickax, a pick. See Pick, and cf. Pike. Source: Websters Dictionary (01 Mar 1998) |
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| Pick, Arnold | <person> Czechoslovakian psychiatrist, 1851-1924. See: Pick's atrophy, Pick's bundle, Pick's disease. (05 Mar 2000) |
| pick bodies | A histologic finding in Niemann-Pick disease. Large rounded collections of material (sphingomyelin) are seen within mononuclear cells. (27 Sep 1997) |
| Pick cell | A relatively large, rounded or polygonal, mononuclear cell, with indistinctly or palely staining, foamlike cytoplasm that contains numerous droplets of a phosphatide, sphingomyelin; such cell's are widely distributed in the spleen and other tissues, especially those rich in reticuloendothelial components, in patients with Niemann-Pick disease. Synonym: Niemann-Pick cell. (05 Mar 2000) |
| Pick, Friedel | <person> German physician, 1867-1926. See: Pick's bodies, Pick's disease, Pick's syndrome. (05 Mar 2000) |
| Pick, Ludwig | <person> German physician, 1868-1935. See: Pick cell, Pick's tubular adenoma, Niemann-Pick cell, Niemann-Pick disease. (05 Mar 2000) |
| Pick's atrophy | Circumscribed atrophy of the cerebral cortex. Synonym: lobar sclerosis, progressive circumscribed cerebral atrophy. (05 Mar 2000) |
| Pick's bodies | Intracytoplasmic argentophilic inclusion body's seen in neurons in Pick's disease. (05 Mar 2000) |
| Pick's bundle | A bundle of nerve fibres recurving rostralward from the pyramidal tract in the medulla oblongata, and believed to consist of corticonuclear fibres. (05 Mar 2000) |
| pick's disease | A form of dementia characterised by a slowly progressive deterioration of social skills and changes in personality leading to impairment of intellect, memory, and language. (12 Dec 1998) |
| Pick's syndrome | A form of dementia characterised by a slowly progressive deterioration of social skills and changes in personality leading to impairment of intellect, memory, and language. (12 Dec 1998) |
| Pick's tubular adenoma | A neoplasm of the ovary, arising from the ovarian stroma, mimicking to a greater or lesser extent derivatives of the sex cord mesenchyme of the testis, and sometimes causing defeminization and virilization. (12 Dec 1998) |
| Niemann-Pick cell | A relatively large, rounded or polygonal, mononuclear cell, with indistinctly or palely staining, foamlike cytoplasm that contains numerous droplets of a phosphatide, sphingomyelin; such cell's are widely distributed in the spleen and other tissues, especially those rich in reticuloendothelial components, in patients with Niemann-Pick disease. Synonym: Niemann-Pick cell. (05 Mar 2000) |
| Niemann-Pick disease | <disease> A family of severe lysosomal storage diseases resulting in an accumulation of sphingomyelin and other phospholipids in the reticuloendothelial system. The best studied forms are due to deficiency of sphingomyelinase and it is more common in Ashkenazi Jews than other groups. Clinical signs include foam cells in the blood and marrow, hepatosplenomegaly and neurologic degeneration. Diagnosis is confirmed by enzyme assay on leukocytes or fibroblasts and specific mutations in the gene are now recognised. (29 Dec 1997) |
| disease, pick's | A form of dementia characterised by a slowly progressive deterioration of social skills and changes in personality leading to impairment of intellect, memory, and language. (12 Dec 1998) |
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