| biclonal peak | Two narrow electrophoretic bands thought to represent immunoglobulin of two cell lines. (05 Mar 2000) |
|---|---|
| peak | The top or upper limit of a graphic tracing or of any variable. Origin: M.E. Peke, pike, fr. Sp. Pico, beak, fr. L. Picus, magpie (05 Mar 2000) |
| peak expiratory flow | The maximum flow at the outset of forced expiration, which is reduced in proportion to the severity of airway obstruction, as in asthma. (05 Mar 2000) |
| peak expiratory flow rate | Measurement of the maximum rate of airflow attained during a forced vital capacity determination. Common abbreviations are pefr and pfr. (12 Dec 1998) |
| peak flow | <chest medicine, physiology> The maximum flow rate of air breathed out during forced expiration. (15 Nov 1997) |
| peak flow rate | Maximum urinary flow rate during voiding as measured by a uroflowmeter. (05 Mar 2000) |
| peak magnitude | The greatest amplitude. (05 Mar 2000) |
| peak plasma drug concentration | <pharmacology> The highest level of drug that can be obtained in the blood usually following multiple doses. (09 Oct 1997) |
| monoclonal peak | A narrow band visible on electrophoresis or an abnormal arc seen on immunoelectrophoresis, thought to represent immunoglobulin of one cell clone. (05 Mar 2000) |
| widow's peak | A sharp point of hair growth in the midline of the anterior scalp margin, usually resulting from recession of hair of the temple areas, or occurring as a congenital configuration of scalp hair. (05 Mar 2000) |
| juxtaphrenic peak | On chest radiograph, a triangular density on top of the right diaphragmatic shadow, probably caused by tension of the phrenic nerve on the pleura over the diaphragm. (05 Mar 2000) |
| Alfven velocity | <physics, radiobiology> Phase velocity of the Alfven wave, equal to the speed of light divided by the square root of (1 plus the ratio of the plasma frequency to the cyclotron frequency for a given species). Va = c / SQRT(1 + plasma frequency / cyclotron frequency) (13 Nov 1997) |
| blood flow velocity | A value equal to the total volume flow divided by the cross-sectional area of the vascular bed. (12 Dec 1998) |
| velocity | The time rate of motion, the distance traveled divided by the time required to travel that distance. (09 Oct 1997) |
| velocity coefficient | The rate of transformation of a unit mass of substance in a chemical reaction. (05 Mar 2000) |