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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]
Farlex Partner Medical Dictionary © Farlex 2012


n. pl. lives (līvz)
a. The property or quality that distinguishes living organisms from dead organisms and inanimate matter, manifested in functions such as metabolism, growth, reproduction, and response to stimuli or adaptation to the environment originating from within the organism.
b. The characteristic state or condition of a living organism.
Of or relating to animate existence; involved in or necessary for living: life processes.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Industry The duration of a product or material in its as-manufactured form
SciSpeak The duration of a substance in a system
Vox populi A constellation of vital phenomena—organization, irritability, movement, growth, reproduction, adaptation
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


1. A constellation of vital phenomena–organization, irritability, movement, growth, reproduction, adaptation. See Quality of life, Sex life, Sexual life.
2. The duration of a product or material in its as-manufactured form. See Shelf life.
3. The duration of a substance in a system. See Biological half-life.


Cardiology A clinical trial–Losartan Intervention for Endpoint Reduction in Hypertension comparing the effects of 2 antihypertensives on cardiovascular M&M. See Antihypertensive, Atenolol, Hypertension, Losartan.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


1. The quality or condition proper to living beings; 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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A self-replicating chemical system capable of undergoing Darwinian evolution. This is but one of many proposed definitions of the term.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


the continuation of the collective activities of an organism.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Patient discussion about life

Q. So now it’s for life? Just like that, out of the blue my doctor told me a few months ago that I apparently I have diabetes (although I’m already 37), and that I’ll need to inject insulin to control my blood sugar. Moreover, I’ll have to restrict my diet and plan everything I put inside my mouth ahead. So far I manage with it, but it interfere with my life so much I don’t how long I can keep this way- it’s like I lost the possibility to be spontaneous in my llife. How do you cope with it?

A. Hi,
I share similar feelings- I was also diagnosed with type 1 diabetes a couple of years ago at 35, and indeed I have to plan my meals ahead. I don’t have any magical solution, but I can at least tell you that’s once you (and your environment) make some helpful technical changes, it feels less of a problem.

But hey, at least we had our twenties to live freely :)

Q. Is it for life? I was recently diagnosed with rheumatoid arthritis, and started taking meds (MTX and others). How long will I have to take these medications?

A. sadly, i can't give you better news then mrfoot56 and brwnis65. these medication are for life. but there are all sort of new treatments that are now researched, using biological ways to reduce the immunoglobolins complexes that accumulates in your joints, here is an article about top 10 advances of 2007:

Q. Give life to her please! Here is a really confusing question to you all. But your reply is a life for her. I know someone who is bipolar and she thinks that her ‘brother’ sexually molested her when they were kids. Can this be a delusion? Or hallucinating?

A. Im going to answer this question a little different;What if she is telling the truth,and her brother is planning on no body believing her? because she has this disease?---keep that in mind when you take her to the DR--mrfoot56

More discussions about life
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References in periodicals archive ?
It is different from biological life, since it is defined by this reduction rather than simply as animal existence.
Yet these details can distract us from what lies at the heart of Machen's fictional enterprise, which is the metaphysical status of mystical experience and subjective vision, an issue that I argue is taken up by the novel's treatment of biological life. The decisive event in Lucian's life is his exploration of the titular hill of dreams, Isca Silurum, the Roman fortress outside of the Welsh village of Caermaen.
"legitimate yet further technocratic interventions, to further extend the state and corporate management of biological life, including the continuing reduction of humanity to bare life and nature to mere resource, and to stifle ecological politics as such" (Smith, 2011, page xvi).
Death is a constituent element of human biological life: it is opposed to life while being inseparable from it.
But the myths themselves expressed an earlier grasp of transformation--an imperfect grasp that must have inspired anxiety, terror, wonder and awe--rooted in observable biological life, in changing psychological states of being, and in the deep, imperative rhythms of cosmic realities.
If we maintain this course in the Arab world, we will mark an ignominious achievement: the political life span of our rulers and ruling families will be longer than the average biological life expectancy of our citizens.
of Haifa, Israel) notes that the life cycle of organizations is very similar to the biological life cycle, and uses that metaphor to discuss the problems and "diseases" that cause an organization to fail.
Biological life, including seeds, has been classified using the Linnaean system since the mid-1700s.
It is the fact that, at the moment of conception, not only does the biological life of an individual human being commence, but, at that precise moment, God creates the soul that is immediately united with that body and a new individual human person comes into existence.
PLUMES of methane in the atmosphere of Mars could be evidence of biological life on the red planet, scientists said last night.
Finally is the issue of the value of life, particularly biological life. Human life is seen as sacred and valuable, yet it is created and finite.
"Understanding the low-flow characteristics provides basic knowledge of a stream's ability to support biological life while also serving as a source to humans for drinking water or wastewater treatment," Funkhouser said.

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