| TT | tablet triturate; tactile tension; tendon transfer; test tube; testicular torsion; tetanus toxin; te... |
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| TTS | tarsal tunnel syndrome; temporary threshold shift; through the scope; through the skin; tilt table s... |
| UCT | urological care table |
| CPDL | cumulative population doubling level |
| CPK | cell population kinetic [model]; creatine phosphokinase |
| suburban population | The inhabitants of peripheral or adjacent areas of a city or town. (12 Dec 1998) |
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| synchronous cell population | <cell culture> A culture of cells that all divide in synchrony. Particularly useful for certain studies of the cell cycle, cells can be made synchronous by depriving them of essential molecules, which are then restored. Synchronisation breaks down after a few cycles, however, as individual cells have unique division rates. (19 Jan 1998) |
| q in population genetics | The frequency of the less common of two different alternative (allelic) versions of a gene. (the frequency of the more common allele is p). (12 Dec 1998) |
| topotypical population | <zoology> Population occurring at the type locality from which the type specimen was taken. (09 Jan 1998) |
| urban population | The inhabitants of a city or town, including metropolitan areas and suburban areas. (12 Dec 1998) |
| rate, foetal mortality | The ratio of foetal deaths divided by the sum of the births (the live births + the foetal deaths) in that year. In the united states, the foetal mortality rate plummeted from 19.2 per 1,000 births in 1950 to 9.2 per 1,000 births in 1980. (12 Dec 1998) |
| rate, infant mortality | The number of children dying under a year of age divided by the number of live births that year. The infant mortality rate in the united states, which was 12.5 per 1,000 live births in 1980, fell to 9.2 per 1,000 live births in 1990. (12 Dec 1998) |
| rate, maternal mortality | The number of maternal deaths related to childbearing divided by the number of live births (or by the number of live births + foetal deaths) in that year. The maternal mortality rate in the united states in 1993 (and 1994) was 0.1 per 1,000 live births, or 1 mother dying per 10,000 live births. (12 Dec 1998) |
| rate, neonatal mortality | The number of children dying under 28 days of age divided by the number of live births that year. The neonatal mortality rate in the united states, which was 8.4 per 1,000 live births in 1980, declined to 5.8 per 1,000 live births in 1990. (12 Dec 1998) |
| maternal mortality | Maternal deaths resulting from complications of pregnancy and childbirth in a given population. (12 Dec 1998) |
| maternal mortality rate | The number of maternal deaths related to childbearing divided by the number of live births (or by the number of live births + foetal deaths) in that year. The maternal mortality rate in the united states in 1993 (and 1994) was 0.1 per 1,000 live births, or 1 mother dying per 10,000 live births. (12 Dec 1998) |
| perinatal mortality | Mortality around the time of birth, conventionally limited to the period from 28 weeks gestation to one week postnatal. (05 Mar 2000) |
| perinatal mortality rate | The number of stillborn infants of 24 completed weeks or more plus the number of deaths occurring under 7 days of life divided by the number of stillborn infants of 24 weeks or more gestation plus all liveborn infants in the same population, regardless of the period of gestation. (05 Mar 2000) |
| mortality | The death rate. The ratio of the total number of deaths to the total population. (27 Sep 1997) |
| mortality rate | <statistics> The proportion of deaths in a population or to a specific number of the population. (18 Nov 1997) |