| pertain | 1. To belong; to have connection with, or dependence on, something, as an appurtenance, attribute, etc.; to appertain; as, saltness pertains to the ocean; flowers pertain to plant life. "Men hate those who affect that honor by ambition which pertaineth not to them." (Hayward) 2. To have relation or reference to something. "These words pertain unto us at this time as they pertained to them at their time." (Latimer) Origin: OE. Partenen, OF. Partenir, fr. L. Pertinere to stretch out, reach, pertain; per + tenere to hold, keep. See Per-, and Tenable, and cf. Appertain, Pertinent. Source: Websters Dictionary (01 Mar 1998) |
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| pertechnetate | Anionic form of technetium used widely in nuclear scanning; 99mTc04. Sodium pertechnetate, Na 99mTcO4;a radiopharmaceutical used for brain, thyroid, and salivary gland scanning. (05 Mar 2000) |
| Perthes disease | <orthopaedics> A disorder characterised by the deterioration of the head of the femur in the hip joint, due to its insufficient blood supply. This disorder occurs most frequently in boys aged 5 to 10 years and tends to run in families. Symptoms include thigh pain, hip pain, knee pain, atrophy of muscles in the thigh, hip stiffness and walking with a limp. (13 Nov 1997) |
| Perthes' test | A test for patency of deep femoral vein; with the patient standing, a tourniquet is applied above the knee; after walking, if deep circulation is competent, the superficial varicosities remain unchanged and legs become painful. (05 Mar 2000) |
| Perthes, Georg | <person> German surgeon, 1869-1927. See: Perthes disease, Perthes' test, Calve-Perthes disease, Legg-Calve-Perthes disease. (05 Mar 2000) |
| perthio- | <prefix> Prefix denoting substitution of sulfur for every oxygen in a compound; e.g., perthiocarbonic acid, H2CS3. (05 Mar 2000) |
| perthiocyanogen | <chemistry> Same as Persulphocyanogen. Source: Websters Dictionary (01 Mar 1998) |
| perthite | <chemical> A kind of feldspar consisting of a laminated intertexture of albite and orthoclase, usually of different colours. Perthit"ic. Origin: So called from Perth, in canada. Source: Websters Dictionary (01 Mar 1998) |
| Pertik's diverticulum | An abnormally deep recessus pharyngeus. (05 Mar 2000) |
| Pertik, Otto | <person> Hungarian pathologist, 1852-1913. See: Pertik's diverticulum. (05 Mar 2000) |
| pertrochanteric fracture | A fracture through the great trochanter of the femur; a form of extracapsular hip fracture. (05 Mar 2000) |
| perturbation | 1. The act of perturbing, or the state of being perturbed; especially, agitation of mind. 2. <astronomy> A disturbance in the regular elliptic or other motion of a heavenly body, produced by some force additional to that which causes its regular motion; as, the perturbations of the planets are caused by their attraction on each other. Origin: L. Perturbatio: cf. F. Perturbation. Source: Websters Dictionary (01 Mar 1998) |
| pertusate | <botany> Pierced at the apex. See: Pertuse. Source: Websters Dictionary (01 Mar 1998) |
| pertussis | <infectious disease> An acute, highly contagious infection of the respiratory tract, most frequently affecting young children, usually caused by Bordetella pertussis, a similar illness has been associated with infection by B. Parapertussis and B. Bronchiseptica. It is characterised by a catarrhal stage, beginning after an incubation period of about two weeks, with slight fever, sneesing, running at the nose and a dry cough. In a week or two the paroxysmal stage begins, with the characteristic paroxysmal cough, consisting of a deep inspiration, followed by a series of quick, short coughs, continuing until the air is expelled from the lungs, the close of the paroxysm is marked by a long drawn, shrill, whooping inspiration, due to spasmodic closure of the glottis. This stage lasts three to four weeks, after which the convalescent stage begins, in which paroxysms grow less frequent and less violent and finally cease. Synonym: whooping cough. Origin: L. Tussis = cough (18 Nov 1997) |
| pertussis immune globulin | A sterile solution of globulin's derived from the plasma of adult human donors who have been immunised with pertussis vaccine; used both prophylactically and therapeutically. Synonym: pertussis immunoglobulin. (05 Mar 2000) |