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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 ?
Our aim here is to make some initial steps in shedding light on the nature of organization, entropic conditions and source of information present between the microscopic and macroscopic levels in the case of living organisms.
And every microgram of uranium used in a military campaign gets left there, to poison and irradiate any living organisms that wander by.
The most obvious difference between living organisms and machines is the process by which they are created and modified to respond to new needs.
Additional roundness of spacetime around living organisms can be understood as the presence of vacuum energies in organisms.
In his first brilliant discovery 20 years ago, for example, Kauffman created a system of 100 computer-dwelling "genes," all turning each other on and off, just as real genes are believed to do in any living organism. Although the situation appeared completely chaotic, Kauffman discovered that when each gene was controlled by only two other genes, the on-off patterns would settle down into about 10 repeating cycles, or "basins of attraction." He posited that these basins corresponded to the different cell types that are produced by the same set of genes in every multicellular organism.
For it, Mau and editor Sanford Kwinter concocted a graphic alchemy meant to transform the volume into a living organism. They mobilized every element from letter to chapter and knit these into a complex, throbbing weave.
Critics had their doubts and said there was no proof it had been left by a living organism.
Cheese doesn't have a DNA code as it is not a living organism. However the streptococcus thermophilus, which is used in the dairy fermentations, does have DNA (Page 6, April 25).
But we're still part of the nervous system of the universe, and any living organism, if threatened, will, in general, sacrifice parts of its body to preserve the nervous system.
But the functioning of even a simple system such as a single yeast cell or bacterium is much more complicated than the sum of its genes or proteins or metabolites; it's the activity of all those components and their relationships to one another that add up to a living organism. Recognizing that complexity, the emerging field of systems biology attempts to harness the power of mathematics, engineering, and computer science to analyze and integrate data from all the "omics" and ultimately create working models of entire biological systems.
Neoconcretism opened a field of experimentation in which the work was conceived as a careful, formal operation, yet considered a living organism that could interact with the spectator.