| TDI | temperature difference integration; three-dimensional interlocking [hip]; toluene 2,4-diisocyanate; ... |
|---|---|
| TEN | total enteral nutrition; total excretory nitrogen; toxic epidermal necrolysis; transepidermal neuros... |
| TET | tetracycline; total ejection time; total exchange thyroxine; treadmill exercise test |
| TFR | total fertility rate; total flow resistance; transferrin receptor |
| TGA | taurocholate gelatin agar; thyroglobulin activity; total glycoalkaloids; total gonadotropin activity... |
| small increment sensitivity index test | The sounding of a tone 20 dB above threshold, followed by a series of 200-msec tones 1 dB louder; perception of these is indicative of cochlear damage. Synonym: small increment sensitivity index test. (05 Mar 2000) |
|---|---|
| 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) |
| 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) |
| diversity index | <ecology> The relationship of the number of taxa (richness) to the number of individuals per taxon (abundance) for a given community. (09 Oct 1997) |