1. Vitality, the essential condition of being alive; the state of existence characterized by such functions as metabolism, growth, reproduction, adaptation, and response to stimuli. 2. Living organisms such as animals and plants. [A.S. lif]
- half-l. half-l..
- postnatal l. that interval of l. after birth; in humans, usually divided into periods: neonatal, infancy, childhood, adolescence, and adulthood.
- prenatal l. that interval of l. between conception and birth; in humans, usually divided into embryonic and fetal periods.
- quality of l. a patient's general well-being, including mental status, stress level, sexual function, and self-perceived health status.
- sexual l. in psychiatry and psychoanalysis, the specifically erotic or sexual interests, fantasies, inclinations, and conduct of the patient.
- vegetative l. the simple metabolic and reproductive activity of humans or animals, apart from the exercise of conscious mental or psychic processes.
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lifestyle intervention, food, and exercise program; Losartan Intervention for Endpoint Reduction in Hypertension [trial]; lung imaging fluorescence endoscope

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life 'līf n, pl lives 'līvz
1 a) the quality that distinguishes a vital and functional plant or animal from a dead body
b) a state of living characterized by capacity for metabolism, growth, reaction to stimuli, and reproduction
2 a) the sequence of physical and mental experiences that make up the existence of an individual
b) a specific part or aspect of the process of living <sex \life> <adult \life>
life·less 'līf-ləs adj

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(līf) the aggregate of vital phenomena, a distinctive stimulated condition of organized matter; that principle whereby organized beings are endowed with certain powers and functions not associated with inorganic matter. Generally, living things share, in varying degrees, the following characteristics: organization, irritability, movement, growth, reproduction, and adaptation.

Medical dictionary. 2011.


Look at other dictionaries:

  • Life — (l[imac]f), n.; pl. {Lives} (l[imac]vz). [AS. l[imac]f; akin to D. lijf body, G. leib body, MHG. l[imac]p life, body, OHG. l[imac]b life, Icel. l[imac]f, life, body, Sw. lif, Dan. liv, and E. live, v. [root]119. See {Live}, and cf. {Alive}.] 1.… …   The Collaborative International Dictionary of English

  • Life — • The enigma of life is still one of the two or three most difficult problems that face both scientist and philosopher Catholic Encyclopedia. Kevin Knight. 2006. Life     Life      …   Catholic encyclopedia

  • life — [laɪf] noun lives PLURALFORM [laɪvz] [countable] 1. the period of time during which something takes place or exists: • industrial products used during the life of a mining operation • The rate of interest is often subsidized and fixed for the… …   Financial and business terms

  • LIFE — (englisch für Leben) bezeichnet: Life (Magazin), amerikanische Magazine Life (Manga), japanische Manga Serie das Umwelt Förderprojekte der EU namens LIFE I III und LIFE+ den Originaltitel eines amerikanischen Films, siehe Lebenslänglich (Film)… …   Deutsch Wikipedia

  • Life TV — Saltar a navegación, búsqueda Life TV es una canal virtual ubicado en la comuna de San Miguel, Stgo que ofrece una variedad de programacion para todas las edades, Ocupa los primeros lugares de transmicion Life TV® Nombres oficiales Lifetv S.A.… …   Wikipedia Español

  • LIFE — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}}   Sigles d une seule lettre   Sigles de deux lettres   Sigles de trois lettres …   Wikipédia en Français

  • LIFE — Premier produit journalistique d’une nouvelle époque celle des picture magazines , le magazine américain Life consacre le règne de l’image, qui commence à triompher dans les années 1930. Rédacteur en chef du Time , magazine d’information… …   Encyclopédie Universelle

  • Life — (englisch für ‚Leben‘) bezeichnet: Life (Magazin), amerikanisches Magazin Life (Manga), japanische Manga Serie Life Radio, österreichischer Radiosender Life Racing, italienischer Formel 1 Rennstall Life (Fernsehserie), US amerikanische… …   Deutsch Wikipedia

  • Life. Be in it. — Life. Be in it. is an Australian government program and advertising campaign encouraging people to be more active and participate in recreational sports or other physical activities.The program began in 1975 with the Victorian state government,… …   Wikipedia

  • Life — (с англ. life  жизнь): Life  второй студийный альбом шведской группы The Cardigans. Life  альбом ирландской группы Thin Lizzy. Life  альбом пуэрториканского певца Рики Мартина. life:)  украинский оператор сотовой… …   Википедия

  • life — I (period of existence) noun anima, continuance, cycle, duration, endurance, existence, lastingness, lifetime, period, period of survival, span, survival, term, term of activity, term of effectiveness, time, time from birth to death, vita… …   Law dictionary

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