| WBGT index | Wet Bulb Globe Thermometer index = 0.7tw + 0.3k{(tg-ta)oK + ta} ta; 건... |
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| AEI | arbitrary evolution index; atrial emptying index |
| AHI | active hostility index; Animal Health Institute; apnea-plus-hypopnea index |
| BI | background interval; bacterial or bactericidal index; base-in [prism]; basilar impression; Billroth ... |
| CPI | California Personality Inventory; Cancer Potential Index; congenital palatopharyngeal incompetence; ... |
| Simplified Oral Hygiene Index | An index that measures the current oral hygiene status based upon the amount of debris and calculus occurring on six representative tooth surfaces in the mouth; often used in field surveys of periodontal disease. (05 Mar 2000) |
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| spiro-index | Vital capacity divided by the height of the individual. (05 Mar 2000) |
| splenic index | A rough indication of the salubrity, or the reverse, in regard to malaria of a particular district, judged by the relative absence or prevalence of enlarged spleens among the population. (05 Mar 2000) |
| nasal index | Relation of the greatest width of the nasal aperture to the length of a line from the nasion to the lower border of the nasal aperture: (nasal width × 100)/nasal height. (05 Mar 2000) |
| staphylo-opsonic index | The opsonic index calculated in relation to a staphylococcal infection, with a young culture of Staphylococcus aureus or the strain of staphylococcus from the patient being used in the test. (05 Mar 2000) |
| stroke work index | A measure of the work done by the heart with each contraction, adjusted for body surface area; equal to the stroke volume of the heart multiplied by the arterial pressure and divided by body surface area; the normal stroke work index does not exceed 40 gram-meters per square meter. (05 Mar 2000) |
| suitability index curve | Graph that depicts the suitability of a physical habitat variable for a fish species or life stage, often assumed to depict the species' or life stage's relative preference for values of the variable. (09 Oct 1997) |
| nucleoplasmic index | The quotient of the nuclear volume divided by the cytoplasmic volume. (05 Mar 2000) |
| Dean's fluorosis index | An index that measures the degree of mottled enamel (fluorosis) in teeth; used most often in epidemiological field studies. (05 Mar 2000) |
| superior facial index | The length of the face is measured from the nasion to the alveolar point: (nasialveolar length × 100)/bizygomatic width; for (05 Mar 2000) |
| def caries index | An index of past caries experience based upon the number of decayed, extracted, and filled deciduous (indicated by lower case letters) or permanent (indicated by capital letters) teeth. (05 Mar 2000) |
| degenerative index | The percentage of granulocytes that contain toxic granules in the cytoplasm, as compared with the total percentage of granulocytes. (05 Mar 2000) |
| dental index | Relation of the dental length (distance from the mesial surface of the first premolar to the distal surface of the third molar) to the basinasal (basion to nasion) length: (dental length ×100)/basinasal length, a system of numbers for indicating comparative size of the teeth. Synonym: Flower's dental index. (05 Mar 2000) |
| dental plaque index | An index which scores the degree of dental plaque accumulation. (12 Dec 1998) |
| df caries index | An index of past caries experience based upon the number of decayed and filled deciduous (indicated by lower case letters) or permanent (indicated by capital letters) teeth. Synonym: df, DF. (05 Mar 2000) |