| PSI | posterior sagittal index; problem solving information; prostaglandin synthetic inhibitor; psychologi... |
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| RRI | recurrent respiratory infection; reflex relaxation index; relative response index |
| SFI | Sexual Function Index; Social Function Index |
| TBI | thyroid-binding index; thyroxine-binding index; tooth-brushing instruction; total-body irradiation; ... |
| TI | inversion time; temporal integration; terminal ileum; thalassemia intermedia; therapeutic index; tho... |
| Periodontal Disease Index | An index used for estimating the degree of periodontal disease based on the measurement of six representative teeth for gingival inflammation, pocket depth, calculus and plaque, attrition, mobility, and lack of contact. (05 Mar 2000) |
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| periodontal index | A numerical rating scale for classifying the periodontal status of a person or population with a single figure which takes into consideration prevalence as well as severity of the condition. It is based upon probe measurement of periodontal pockets and on gingival tissue status. (12 Dec 1998) |
| metacarpal index | The average ratio of length to breadth of metacarpals II to V; this ratio is increased in the Marfan syndrome. (05 Mar 2000) |
| Robinson index | An index used to calculate heart work load. See: double product. (05 Mar 2000) |
| phagocytic index | The average number of bacteria observed in the cytoplasm of polymorphonuclear leukocytes after mixing and incubating, at 37캜, 1) a suspension of washed, presumably normal leukocytes, 2) the serum to be tested for opsonin, and 3) a young culture of microorganisms that are causing disease in the patient. Origin: L. Phagedaena, Gr Phago, To eat. (05 Mar 2000) |
| Rohrer's index | Body weight in grams times 100 divided by the cube of height in centimeters. (05 Mar 2000) |
| root caries index | The ratio of the number of teeth with carious lesions of the root, and/or restorations of the root, to the number of teeth with exposed root surfaces. (05 Mar 2000) |
| Russell's Periodontal Index | An index that estimates the degree of periodontal disease present in the mouth by measuring both bone loss around the teeth and gingival inflammation; used frequently in the epidemiological investigation of periodontal disease. (05 Mar 2000) |
| mitotic index | <cell biology, molecular biology> The fraction of cells in a sample that are in mitosis. It is a measure of the relative length of the mitotic phase of the cell cycle. (18 Nov 1997) |
| molar absorbancy index | Absorbance (of light) per unit path length (usually the centimeter) and per unit of concentration (moles per liter); a fundamental unit in spectrophotometry. Synonym: absorbancy index, absorptivity, molar absorbancy index, molar absorptivity, molar extinction coefficient. (05 Mar 2000) |
| Pirquet's index | An obsolete method of establishing the presence of malnutrition by dividing the weight (grams/10) by the sitting height (in cm); the cube root of the quotient if < 0.945 was considered as indicating malnutrition. (05 Mar 2000) |
| Colour Index | A publication concerned with the chemistry of dyes, with each listed dye identified by a five-digit Colour Index number, e.g., methylene blue is Colour Index 52015. (05 Mar 2000) |
| Plaque Index | An index for estimating the status of oral hygiene by measuring dental plaque which occurs in the areas adjacent to the gingival margin. (05 Mar 2000) |
| PMA index | An index which measures the presence or absence of gingival inflammation as occurring on the papillae or the marginal or attached gingivae. (05 Mar 2000) |
| cornell medical index | Self-administered health questionnaire developed to obtain details of the medical history as an adjunct to the medical interview. It consists of 195 questions divided into eighteen sections; the first twelve deal with somatic complaints and the last six with mood and feeling patterns. The index is used also as a personality inventory or in epidemiologic studies. (12 Dec 1998) |