| misc | miscarriage; miscellaneous |
|---|---|
| DEF | decayed primary teeth requiring filling, decayed primary teeth requiring extraction, and primary tee... |
| PA | panic attack; pantothenic acid; paralysis agitans; paranoia; passive aggressive; pathology; patient'... |
| PCC | Pasteur Culture Collection; percutaneous cecostomy; pheochromocytoma; phosphate carrier compound; pl... |
| alv | vent alveolar ventilation |
| SEVC | single electrode voltage clamp |
|---|---|
| primary SS | Primary Sjogren's syndrome |
| COPC | Community Oriented Primary Care |
| HPC | Hepatocyte primary cultures |
| ICHPPC | International Classification of Health Problems in Primary Care |
open anesthesia
primary's area
| vent | To snuff; to breathe or puff out; to snort. Origin: Cf. F. Venter to blow, vent wind (see Ventilate); but prob influenced by E. Vent an opening. 1. A small aperture; a hole or passage for air or any fluid to escape; as, the vent of a cask; the vent of a mold; a volcanic vent. "Look, how thy wounds do bleed at many vents." (Shak) "Long't was doubtful, both so closely pent, Which first should issue from the narrow vent." (Pope) 2. <zoology> Specifically: The anal opening of certain invertebrates and fishes; also, the external cloacal opening of reptiles, birds, amphibians, and many fishes. The opening at the breech of a firearm, through which fire is communicated to the powder of the charge; touchhole. Sectional area of the passage for gases divided by the length of the same passage in feet. 3. Opportunity of escape or passage from confinement or privacy; outlet. 4. Emission; escape; passage to notice or expression; publication; utterance. "Without the vent of words." (Milton) "Thou didst make tolerable vent of thy travel." (Shak) To give vent to, to suffer to escape; to let out; to pour forth; as, to give vent to anger. To take vent, to escape; to be made public. <zoology> Vent feather A bush. See 4th Bush. A breech block. Origin: OE. Fent, fente, a slit, F. Fente a slit, cleft, fissure, from fendre to split, L. Findere; but probably confused with F. Vent wind, L. Ventus. See Fissure, and cf. Vent to snuff. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| vol-au-vent | A light puff paste, with a raised border, filled, after baking, usually with a ragout of fowl, game, or fish. Origin: F. Source: Websters Dictionary (01 Mar 1998) |
| hydrothermal vent | A natural spring which vents warm or hot water on the sea floor, associated with spreading of the Earth's crust. (09 Oct 1997) |
| Deep Vent DNA polymerase | <enzyme> A thermostable DNA polymerase with putative proofreading activity Registry number: EC 2.7.7.- (26 Jun 1999) |
| Gant's clamp | A right-angled clamp used in haemorrhoidectomy. (05 Mar 2000) |
| Gaskell's clamp | An instrument for crushing the atrioventricular bundle in experimental animals and thus producing heart block. (05 Mar 2000) |
| Rankin's clamp | A three-bladed clamp used in resection of colon. (05 Mar 2000) |
| gingival clamp | A springlike metal piece encircling or grasping the cervix of a tooth and shaped so as to retract the gingival tissue. (05 Mar 2000) |
| patch clamp | <physiology> A specialised and powerful variant of voltage clamping, in which a patch electrode of relatively large tip diameter (5m) is pressed tightly against the plasma membrane of a cell, forming an electrically tight, gigohm seal. The current flowing through individual ion channels can then be measured. Different variants on this technique allow different surfaces of the plasma membrane to be exposed to the bathing medium: the contact just described is a cell attached patch. If the electrode is pulled away, leaving just a small disc of plasma membrane occluding the tip of the electrode, it is called an inside out patch. If suction is applied to a cell attached patch, bursting the plasma membrane under the electrode, a whole cell patch (similar to an intracellular recording) is formed. If the electrode is withdrawn from the whole cell patch, the membrane fragments adhering to the electrode reform a seal across the tip, forming an outside out patch. (15 Mar 2000) |
| patch-clamp techniques | An electrophysiologic technique for studying cells, cell membranes, and occasionally isolated organelles. All patch-clamp methods rely on a very high-resistance seal between a micropipette and a membrane; the seal is usually attained by gentle suction. The four most common variants include on-cell patch, inside-out patch, outside-out patch, and whole-cell clamp. Patch-clamp methods are commonly used to voltage clamp, that is control the voltage across the membrane and measure current flow, but current-clamp methods, in which the current is controlled and the voltage is measured, are also used. (15 Mar 2000) |
| Payr's clamp | A clamp used in gastrectomy or enterectomy. (05 Mar 2000) |
| glucose clamp technique | <technique> Maintenance of a constant blood glucose level by perfusion or infusion with glucose or insulin. It is used for the study of metabolic rates (e.g., in glucose, lipid, amino acid metabolism) at constant glucose concentration. (12 Dec 1998) |
| voltage clamp | <physiology, technique> A technique in electrophysiology, in which a microelectrode is inserted into a cell and current injected through the electrode so as to hold the cells membrane potential at some predefined level. The technique can be used with separate electrodes for voltage sensing and current passing, for small cells, the same electrode can be used for both. Voltage clamp is a powerful technique for the study of ion channels. See: patch clamp. (18 Nov 1997) |
| Goldblatt's clamp | A clamp applied experimentally to the renal artery to damp pulse pressure and thereby produce chronic hypertension by activation of the renin-angiotensin system. (05 Mar 2000) |
| right angle clamp | A clamp with a short 90 |
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