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American football
a. either of two players who defend the area furthest back in the field
b. a play in which the offensive team causes the ball to cross its own goal line and then grounds the ball behind that line, scoring two points for the opposing team
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


Methods and techniques of avoiding accident or disease.
A locking or cut-off device that prevents a weapon or missile from being fired accidentally.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

elevator car safety, counterweight safety

A mechanical device attached to an elevator car frame or to the frame of the counterweight; slows down, stops, and holds the car or counterweight in the event of excessive speed or free fall of the car, or if the wire ropes slacken, break, or pull out of their fastenings.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


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intrinsic safety

Inherently safe machinery, electrical and electronic systems that do not contain hazardous materials, high voltages, bare terminals or other potentially dangerous parts that can cause injury to a human. See safety.

machine safety

Safeguards that are applied to both machinery and the operators who work with them. Examples are interlocks that stop a motor if a person gets too close, guards that cover moving gears and blades and goggles and protective clothing. See safety.

safety instrumented system

A system that protects a manufacturing or operating process. Conforming to the IEC 61511 or 61508 standards, such a system is designed to shut itself down or change to a reduced operational state in the event of failure or hazardous situation. Also called "ESD system," "emergency shutdown," "safety shutdown" and "emergency trip system." See safety.

safety integrity level

A measurement of the effectiveness of safety systems based on the probability of tolerable incidents that can occur within a number of processing demands. For example, SIL level 4 means that for every 10,000 demands on the system, there could be one incident. See safety instrumented system.

Probability Categories
SIL From To

1 1 in 10 1 in 100
2 1 in 100 1 in 1,000
3 1 in 1,000 1 in 10,000
4 1 in 10,000 1 in 100,000

safety network

A network used in industrial and process control industries that provides real-time response to signals for turning off machinery due to a malfunction or operator accident. See safety.
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References in periodicals archive ?
College students have also participated in a version of the Prescription Drug Safety course that was customized for their use.
In addition to providing high school students with the free online Prescription Drug Safety Program, The Rite Aid Foundation is participating in teacher training events to support the course.
Our GLP drug safety and medical device testing services meet global regulatory requirements to support our global clients on regulatory submissions in the United States, OECD countries and China," said Dr.
"The regulatory landscape is continually evolving which makes drug safety reporting increasingly complex," said Andy Garrett, executive vice president, scientific operations, ICON.
The future of drug safety in Pakistan lies on the performance of the pharmacovigilance system on the strict observance of 'good pharmacovigilance practice' a concept widely accepted in the world.
Unlike their international peers, Chinese drug makers are often dependent on several key products to generate a large portion of their revenues and earnings, which leaves them vulnerable to potential drug safety incidents.
Through expert guidance from an industry KOL's, the programme for Drug Safety is shaping up to be highly interactive and engaging!
As a result, BioIVT is adding Hepregen's HepatoPac, HepatoMune and HepatoStem liver cell and stem cell product lines to its drug safety testing and toxicology portfolios.
However, after reviewing patient cases and study findings, the FDA said the evidence didn't support an association between fluoroquinolone usage and potential retinal or aortic dangers, according to its May 10, 2017, Drug Safety Communication update.
Contributed by information technology, informatics, and other specialists from India, Saudi Arabia, the UK, and the US, the 13 articles in this volume discuss the integration of software innovations in drug discovery, clinical trials, genomics, and drug safety testing.
18 -- "Ensuring safer drugs to market by analyzing latest developments in pharmacovigilance, drug safety and risk management"