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1. the entire gaseous envelope surrounding the earth and subject to the earth's gravitational field.
2. the air or climate in a particular place. adj., atmospher´ic.
3. a unit of pressure, being that exerted by the earth's atmosphere at sea level; equal to 1.01325 × 105pascals (approximately 760 mm Hg). Abbreviated atm.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Farlex Partner Medical Dictionary © Farlex 2012


Ataxia telangiectasia mutated. A checkpoint kinase which transduces genomic stress signals to stop cell cycle progression and promote DNA repair, acting via p53, a tumour suppressor protein. Its cognate gene, ATM (see below), is mutated in ataxia telangiectasia, a rare neurodegenerative disease characterised by ataxia telangiectasias, increased chromosome fragility when exposed to ionising radiation and predisposition to lymphomas.

ATM (Gene)
A gene on chromosome 11q22-q23, which encodes a PI3/PI4 cell-cycle checkpoint kinase that phosphorylates, thereby regulating a broad range of downstream proteins—e.g., tumor suppressor proteins p53 and BRCA1, checkpoint kinase CHK2, checkpoint proteins RAD17 and RAD9, and DNA repair protein NBS1.

Mutated in
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Abbreviation for standard atmosphere.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The network of VPN's servers must be widespread yet not too distant from their user base.
If you connect to a VPN server location that's quite far from your own geographical location, you might experience slower connections.
With 49% using VPNs mainly to bypass geo-restrictions on content, this remains a huge issue for studios, sports leagues, rights-holders and premium broadcasters who rely on territory-based licensing to fund their productions and operations, stated GeoGuard CEO David Briggs.
Note that a VPN connection will not protect you from key-logging software or data-mining viruses that are already installed or may become installed on your computer(s) or smartphone(s); those types of hacking tools can capture data directly from your device and transmit them through your VPN connection to nefarious destinations.
The security researcher also noted in his research that it was initially difficult to determine what information Protect VPN was collecting and transmitting, as the data uploads appear to occur inside the VPN's packet tunnel, meaning the data being sent to Facebook is encrypted.
What about the downsides to using a VPN? Overall, using one can negatively impact your Internet speed aS it places another obstacle between your computer and the Internet.
Some security experts argue that acommercial VPN is better than a free proxy such as the TOR networkfor political activity, but a VPN is only part of the solution.
Users with an American or a European subscription could watch any of the streaming services in the UAE with a VPN.
Its hard to look for a free VPN that actually works well and some of the paid VPN are not worth the penny but FrootVPN is the one that deserves your attention.
Most others are however free of cost, with names including Securitykiss, a free VPN by US company, Opera Mini, Turbo and Ultrasurf are some of the proxy servers popular in Kashmir.
As opposed to using the web, with the ever-present danger of someone snooping or planting malicious software on a system, VPN data travels over the same cables and routers of the internet--but everything is encrypted.