| PC | avoirdupois weight [Lat. pondus civile]; packed cells; paper chromatography; paracortex; parent cell... |
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| PE | Edinburgh Pharmacopoeia; pancreatic extract; paper electrophoresis; partial epilepsy; pelvic examina... |
| PRIST | paper radioimmunosorbent test |
| Rf | in paper or thin-layer chromatography, the distance that a spot of a substance has moved from the po... |
| Rst | in paper or thin layer chromatography, the distance that a spot of a substance has moved, relative t... |
| bipolar lead | A record obtained with two electrodes placed on different regions of the body, each electrode contributing significantly to the record; e.g., a standard limb lead. (05 Mar 2000) |
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| black lead | Plumbago; graphite.It leaves a blackish mark somewhat like lead. See Graphite. Source: Websters Dictionary (01 Mar 1998) |
| red lead | A bright orange-red powder that turns black when heated; used in ointments and plasters. Synonym: red lead, red oxide of lead. (05 Mar 2000) |
| red oxide of lead | A bright orange-red powder that turns black when heated; used in ointments and plasters. Synonym: red lead, red oxide of lead. (05 Mar 2000) |
| CB lead | A bipolar chest lead with the negative electrode placed upon the subject's back. (05 Mar 2000) |
| V lead | A unipolar lead with the central terminal as the indifferent electrode; V is the symbol for unipolar (Latin "U"). (05 Mar 2000) |
| CF lead | A bipolar chest lead with the negative electrode placed on the subject's left leg. (05 Mar 2000) |
| CL lead | A bipolar chest lead with the negative electrode placed on the subject's left arm. (05 Mar 2000) |
| white lead | A heavy white powder that is insoluble in water; occasionally, it is used to relieve irritation in dermatitis, but it is used largely in the manufacture of paint and in the arts and is thus productive of lead poisoning. Synonym: ceruse, white lead. (05 Mar 2000) |
| CR lead | A bipolar chest lead with the negative electrode placed on the subject's right arm. (05 Mar 2000) |
| standard limb lead | One of the three original bipolar limb lead's of the clinical electrocardiogram, designated I, II and III: lead I records the potential difference between the right and left arms; lead II the difference between right arm and left leg; and lead III the difference between left arm and left leg. Synonym: indirect lead. (05 Mar 2000) |
| sugar of lead | Has been used as an astringent in diarrhoea, and in aqueous solution as a wet dressing in certain dermatoses. Synonym: sugar of lead. (05 Mar 2000) |
| de-lead | To cause the mobilization and excretion of lead deposited in the bones and other tissues, as by the administration of a chelating agent. (05 Mar 2000) |
| direct lead | In electrocardiography, a unipolar lead recorded with the exploring electrode placed directly on the surface of the exposed heart. (05 Mar 2000) |
| indirect lead | One of the three original bipolar limb lead's of the clinical electrocardiogram, designated I, II and III: lead I records the potential difference between the right and left arms; lead II the difference between right arm and left leg; and lead III the difference between left arm and left leg. Synonym: indirect lead. (05 Mar 2000) |