| lifespan | 1. The duration of life of an individual. 2. The normal or average duration of life of members of a given species. See: longevity. (05 Mar 2000) |
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| lifestyle | The unique and personal customs or habits of an individual. It is their active adaptation to the social milieu, which develops as a product of need for integration and socialisation. It includes; social use of substances such as alcohol and tobacco, dietary habits, exercise, etc., all of which have important implications for health. (22 Sep 2002) |
| drug half-life | The amount of time it takes for one-half of an administered drug to be lost through biological processes (metabolism and elimination). (27 Sep 1997) |
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| immediately dangerous to life concentration | <radiobiology> This is a regulatory value defined as the maximum exposure concentration in the workplace from which one could escape within 30 minutes without suffering symptoms which would interfere with escaping and without suffering any irreversible health effects. (04 Nov 1997) |
| quality adjusted life year | A year of life adjusted for its quality or its value. A year in perfect health is considered equal to 1.0 qaly. The value of a year in ill health would be discounted. For example, a year bedridden might have a value equal to 0.5 qaly. A measurement index derived from a modification of standard life-table procedures and designed to take account of the quality as well as the duration of survival. This index can be used in assessing the outcome of health care procedures or services. (12 Jul 2000) |
| quality of life | Refers to the level of comfort, enjoyment, ability to pursue daily activities. Often used in discussions of treatment options. (16 Dec 1997) |
| indirect life cycle | <epidemiology> A life cycle which requires one or more intermediate hosts before the definitive host species is reinfected. Compare direct, nondirect. (05 Dec 1998) |
| insurance, life | Insurance providing for payment of a stipulated sum to a designated beneficiary upon death of the insured. (12 Dec 1998) |
| economic value of life | The evaluation of the monetary value of a life lost or a life saved. (12 Dec 1998) |
| effective half-life | <radiobiology> Time required for a radioactive substance contained in a biological system (such as a person or an animal) to reduce its radioactivity by half, as a combination result of radioactive decay and biological elimination from the system. (09 Oct 1997) |
| elimination half-life | <pharmacology> The time it takes for the body to eliminate or breakdown half of a dose of a pharmacologic agent. (09 Oct 1997) |
| expectation of life | The average number of years of life an individual of a given age is expected to live if current mortality rates continue to apply; a statistical abstraction based on existing age-specific death rates. Expectation of life at age x, The average number of additional years a person aged x would live if current mortality trends continue to apply, based on the age-specific death rates for a given year. Expectation of life at birth, Average number of years of life a newborn baby can be expected to live if current mortality trends continue. (05 Mar 2000) |
| years of potential life lost | Measure of the relative impact of various diseases and lethal forces on society, computed by estimating the years that people would have lived if they had not died prematurely from injury, cancer, heart disease, etc. (05 Mar 2000) |
| levelised life-cycle cost | The present value of the cost of a resource, including capital, financing and operating costs, expressed as a stream of equal annual payments. This stream of payments can be converted to a unit cost of energy by dividing the annual payment amount by the annual kilowatt-hours produced or saved. By levelizing costs, resources with different lifetimes and generating capabilities can be compared. (05 Dec 1998) |
Synonyms : Prolongation of Life, Care, Life Support, Extraordinary Treatments, Life Prolongation, Treatment, Extraordinary, Treatments, Extraordinary
Synonyms : Life Support System, Support System, Life, Support Systems, Life, System, Life Support, Systems, Life Support
Synonyms : Life Table Estimates, Life Table Method, Analyses, Life Table, Analysis, Life Table, Estimate, Life Table, Estimates, Life Table, Life Table, Life Table Analyses, Life Table Estimate, Life Table Model, Method, Life Table, Methods, Life Table, Model, Life Table
| life-support system |
equipment that makes life possible in otherwise deadly environmental conditions; "the astronauts relied on their life-support systems" medical equipment that assists or replaces important bodily functions and so enables a patient to live who otherwise might not survive; "the patient is on life support"
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| lifetime |
life: the period during which something is functional (as between birth and death); "the battery had a short life"; "he lived a long and happy life"
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| life expectancy |
an expected time to live as calculated on the basis of statistical probabilities
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| life support |
life-support system: equipment that makes life possible in otherwise deadly environmental conditions; "the astronauts relied on their life-support systems" life-support system: medical equipment that assists or replaces important bodily functions and so enables a patient to live who otherwise might not survive; "the patient is on life support"
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| lifestyle |
life style: a manner of living that reflects the person's values and attitudes
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| life | the period from the present until death |
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| life | insurance paid to named beneficiaries when the insured person dies |
| life | a life preserver in the form of a ring of buoyant material |
| life | belt attaching you to some object as a restraint in order to prevent you from getting hurt |
| life | a life preserver in the form of a ring of buoyant material |
| life | an art class using a live human model |
| life | a series of stages through which an organism passes between recurrences of a primary stage |
| life | the course of developmental changes in an organism from fertilized zygote to maturity when another zygote can be produced |
| life | (law) an estate whose duration is limited to the life of the person holding it |
| life | life without beginning or end |
| life | an expected time to live as calculated on the basis of statistical probabilities |
| life | (biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms |