online dictionaries of abbreviations

B C G H I L N O P R U
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B
(Boron) A chemical element in the periodic table that has the atomic number 5. A trivalent metalloid element, boron occurs abundantly in the ore borax. There are several allotropes of boron; More…
Be
(Beryllium) A chemical element in the periodic table that has the atomic number 4. A toxic bivalent element, beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth More…
C
(Carbon) A chemical element in the periodic table that has the atomic number 6. An abundant nonmetallic, tetravalent element, carbon has several allotropic forms: diamond, graphite, More…
Ca
(Calcium) A chemical element in the periodic table that has the atomic number 20. Calcium is a soft grey alkaline earth metal. Calcium is also the fifth most abundant element in the earth's More…
GMO
(Genetically Modified Organism) An organism whose genetic material has been altered using techniques in genetics generally known as recombinant DNA technology. Recombinant DNA technology is More…
GPS
(Global Positioning System) A satellite navigation system used for determining one's precise location and providing a highly accurate time reference almost anywhere on Earth or in Earth More…
H
(Hydrogen) A chemical element in the periodic table that has the atomic number 1. At standard temperature and pressure it is a colorless, odorless, nonmetallic, univalent, tasteless, highly More…
He
(Helium) A chemical element in the periodic table that has the atomic number 2. Helium is a colorless, odorless, tasteless, non-toxic, nearly inert monatomic chemical element that heads the More…
HVAC
(Heating, Ventilation and Air-Conditioning) This is sometimes referred to as climate control. These three functions are closely interrelated, as they control the temperature and humidity of More…
ISS
(International Space Station) A joint project of six space agencies:National Aeronautics and Space Administration (United States), Russian Federal Space Agency (Russian Federation), Japan More…
Li
(Lithium) A chemical element in the periodic table that has the atomic number 3. Lithium is an alkali metal. Lithium in its pure form is a soft, silver white metal, that tarnishes and More…
N
(Nitrogen) A chemical element in the periodic table that has the atomic number 7. Commonly a colorless, odorless, tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 More…
NASA
(National Aeronautics and Space Administration) NASA, established in 1958, is the agency responsible for the public space program of the United States of America. It is also responsible for More…
O
(Oxygen) A chemical element in the periodic table that has the atomic number 8. Oxygen is very common, found not only on Earth but throughout the universe, usually covalently bonded with More…
PVC
(PolyVinyl Chloride) A widely-used plastic. In terms of revenue generated, it is one of the most valuable products of the chemical industry. Globally, over 50% of PVC manufactured is used in More…
RFID
(Radio Frequency IDentification) A method of storing and remotely retrieving data using devices called RFID tags or transponders. An RFID tag is a small object that can be attached to or More…
UFO
(Unidentified Flying Object) Any object or optical phenomenon observed in the sky which cannot be identified, even after being thoroughly investigated by qualified people. A fuller More…
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