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pas·sive

(pas'iv),
Not active; submissive.
[L. passivus, fr. patior, to endure]

passive

/pas·sive/ (pas´iv) neither spontaneous nor active; not produced by active efforts.

passive

(păs′ĭv)
adj.
1. Accepting or submitting without resistance or objection.
2. Of or being an inactive or submissive role in a relationship, especially a sexual relationship.

pas′sive·ly adv.
pas·siv′i·ty n.

passive

Etymology: L passivus
pertaining to behavior that subordinates the individual's own interests to the demands of others.

pas·sive

(pas'iv)
Not active; submissive.
[L. passivus, fr. patior, to endure]

passive,

adj pertaining to patients who become mere spectators as they lack the energy or interest to participate.
Enlarge picture
Passion flower.

pas·sive

(pas'iv)
Not active; submissive.
[L. passivus, fr. patior, to endure]

passive,

n in orthodontics, an orthodontic appliance that has been adjusted to apply no effective tooth-moving force to the teeth. Also called
self-ligation, or
“frictionless.”
passive diffusion,
n an absorption process that occurs in the body when carbohydrates are more highly concentrated in the intestine than in the blood.
passive immunity,
n a form of acquired immunity resulting from antibodies that are transmitted naturally through the placenta to a fetus or through the colostrum to an infant or artificially by injection of antiserum for treatment or prophylaxis. Passive immunity is not permanent and does not last as long as active immunity.
passive reciprocation,
passive smoking,
n the inhalation by nonsmokers of the smoke from other people's cigarettes, pipes, and cigars. See also environmental tobacco smoke (ETS/passive smoke).

passive

neither spontaneous on the part of the patient, nor active response by the patient, the stimulus having been applied externally.

passive cutaneous anaphylaxis (PCA) test
see passive cutaneous anaphylaxis.
passive diffusion
passage of electrolytes to all parts of a solution, including through a permeable membrane. Plays some part in intestinal absorption.
passive hemagglutination test
passive immunization
see passive immunization.
passive neonatal immunity
see passive immunity.
passive transfer
see passive diffusion (above).
passive venous congestion
noninflammatory distention of vessels with blood. Caused by simple accumulation resulting from obstruction or failure of the heart to eject the full volume of blood returned to it.

Patient discussion about passive

Q. what is a passive smoking? and is it dangerous as an active?

A. Passive smoking is the exposure to cigarettes smoke emitted from cigarettes smoke by other person. It's dangerous and may increase the risk to several diseases similar to active smoking (one's exposure to smoke emitted from the cigarettes he or she is smoking) although the risk is of lower magnitude. Example for passive smoking is children of smokers etc.

You may read more here:http://www.nlm.nih.gov/medlineplus/secondhandsmoke.html

Q. what is it a passive smoking? and is it bad as as the active smoking? can i get cancer from it?

A. Passive smoking is the involuntary exposure of nonsmokers to tobacco smoke from the smoking of others. It is considered dangerous, and cause increased risk of cancer, although to a lesser degree than active smoking.

You may read more here:
http://www.nlm.nih.gov/medlineplus/secondhandsmoke.html

Q. Can I get lung cancer from passive smoking? All my friends smoke, can I get cancer by hanging out with them?

A. Yes, you can develop cancer by passive smoking. From what I've heard, non-smokers exposed to second-hand smoke at home or work, increase their risk of developing lung cancer by 20 percent to 30 percent.

More discussions about passive
References in periodicals archive ?
Passive 3D, on the other hand, uses much lighter polarized glasses.
While active 3D is less convenient than passive 3D, it generally offers a better 3D picture.
HDTVs manufacturers that currently sell passive 3D HDTVs: LG, Panasonic, and Vizio
Passive 3D uses glasses with special polarized lenses that filter images to each eye to produce a 3D effect.
The revolutionary 3D eyewear works with most passive 3D technologies.
The scope of protection afforded by this patent allows us to further establish ourselves as the industry leader in bringing passive 3D content to consumers.
We have always believed that M3D provides the best-in-breed solution for consuming passive 3D content and now consumers can rest assured that we not only have the leading innovations but also the protection of our patent behind us.
The world's first mobile, single-projector, passive 3D solution, the RealD LP brings the vibrancy of high-quality 3D to smaller venues such as conference rooms, R&D centers, museum exhibits, mobile education centers, virtual rides and other entertainment attractions.
Many exhibitors also like the fact that our system uses cost-effective, reusable passive 3D glasses, which are also more environmentally friendly.
The Montage LX33 comes with two Christie 3300 ANSI lumens (total 6600 ANSI lumens without polarization filters) LCD projectors at XGA resolution, a 6-axis adjustable stacker, Christie's Active to Passive 3D Converter, a polarization stand with two linear polarizers, a dedicated power bar, all necessary cables and a set of 10 passive stereo glasses.
The product is used in conjunction with lightweight polarized glasses and is optimized to yield the highest-definition stereoscopic images of any passive 3D system on the market.