Science abbreviations and symbols For CSS NTS,PPSC FPSC
FAT: File Allocation Table
FCPS: Fellow Of The Royal College Of Physicians And Surgeons
FM: Frequency Modulation
FMCT: Fissile Material Cut-Off Treaty
FRCS: Fellow Of The Royal College Of Surgeons
GHz. Gigahertz
GMT: Greenwich Mean Tim
HIV: Human Immune Deficiency Virus
HTML: Hypertext Mark-Up Language
HTTP: Hypertext Transfer Protocol
IAEA: International Atomic Energy Agency (UN)
IBM: International Business Machine
IC: Integrated Circuit/ Intelligence Corps
ICBM: Inter-Continental Ballistic Missile
ICU: Intensive Care Unit
IEA: International Energy Agency
INSTRAW: International Research And Training Institute For The Advancement Of
Women
INTELSAC: International Telecommunications Satellite Consortium
Intelsat: International Telecommunications Satellite Organisation
IRBM: Intermediate Range ballistic Missile
ISP: Internet Service Provider
IT: Information Technology
ITB: Information Technology Board
JAXA: Japan Aerospace Exploration Agency
KANUPP: Karachi Nuclear Power Plant
KAPCO: Kot Adu Power Company
kHz: Kilohertz
KV: Kilo Volt
kW: Kilowatt
MCAT: Medical Colleges Admission Test
MDS: Master In Dental Surgery
MNP: Mobile Number Portibility
MRBM: Medium Range Ballistic Missile
MRCP: Member Of Royal College Of Physicians
MRCS: Member Of Royal College Of Surgeons
MRI: Magnetic Resonance Imaging
MS: Medical Superintendent
MSN: Microsoft Network
MW: Megawatt
NADRA: National Database And Registration Authority
NEPRA: National Electric Power Regulatory Authority
NM: Nautical Mile
NMD: National Missile Defence
NPT: Non-Nuclear Proliferation Treaty
NRA: Nuclear Regulatory Authority
OGRA: Oil And Gas Regulatory Authority
NWD: Nation Wide Dialling
OGDC: Oil And Gas Development Corporation
pm: Post Meridiem
LASER…………………………Light Amplification through Stimulated Emission of Radiations
RADAR………………………………………………radio detection and ranging
LPG…………………………………………………….liquified petroleum gas
CFC…………………………………………………….choloro fluoro carbons
AIDS…………………………………………………….acquired immune deficiency syndrome
ROM………………………………Read Only Memory
LAN………………………………Local Area Network
WWW…………………………World Wide Web
DNA…………………………… deoxy ribonucleic acid
HDL…………………………………………………….high density lipoprotein
MeV…………………………………………………….mega electron volt
UHF…………………………Ultra High Frquency
LED………………………….Light Emitting Diode
LCD………………………….Liquid Crystal Display
BASIC………………………Beginner’s All Purpose Symbolic Instruction Code
MASER…………………………………………………micro wave apmplification by s stimulated emmission of radiation
SONAR…………………………………………………sound navigation and ranging
SARS……………………Severe Acute Respiratory Syndrome
NTP……………………………………………………. network time protocol
RQ…………………………………………………….respiratory quotient
PVC…………………………………………………….polyvinyl chloride
NPN…………………………………………………….negative positive negative
WAN…………………….Wide Area Network
ECG………………………Electro Cardiography
BCG……………………………………………………. bacilles of calmette (guerin)
ETT……………………………………………………exercise tolerance test (cardiography)
DBS………………………data base system
BTU……………………… british thermal unit
TNT……………………… tri nitro toulene
CNG………………………Compressed Natural Gas
Unit of Physical Quantities
1- ampere————————–electric current
2-angstrm———————–unit of length for the measurement of wavelength
3-bar—————————–unit of atmosphereic pressure
4-bel—————————-unit of intensity of sound
5-calorie————————measurment of quantity of heat
6-candle power————–illuminating power of a source of light
7-centigrade——————unit of temperature
8-centimeter—————–unit of length
9-coulomb———————–electric charge
10-decibel———————-intensity
11-dioptre———————-power of lense
12-dyne————————unit of force
13-electron volt————-unit of energy
14-erg————————–unit of work
15-farad———————-electric capacity
16-farady———————electric charge
17-gauss———————-megnetic induction
18-gram————————unit of mass
19-gram wt——————–gravitational unit
20-henry———————-unit of induction
21-horse power————–unit of power
22-joule———————–practical unit of work
23-kg—————————unit of mass
24-kilowatt——————–unit of electrical power
25-knot————————-unit of speed
26-killowatt-hour————-practical unit of electrical power
27-lambert——————–unit of brightness
28-light year——————unit of distance for measuring astronomical distance
29-litre————————unit of volume capacity
30-lumen———————-luminous flux
31-lux————————–unit of intensity of lumination
32-maxwell——————–megnetic flux
33-meter———————-unit of distance
34-micro farad—————one millionth of a farad
35-millimicron—————-unit of length used in spectroscopy
36-newton——————–unit of work
37-oersted——————-unit of megnetic intensity
38-ohm————————unit of electrical resistance
39-poise———————-unit of viscosity
40-second——————-unit of time
41-volt————————practical unit of electric potential differenec
42-watt———————–unit of power
43-weber———————unit of magnetic pole strength
44-x.u————————unit of length expressing x-ray wave length
45-gy-gray——————-obsorbed radiation dose
46-mole———————–amount of substance
47-siemens——————-electric conductance
48-hertz———————frequecy
49-radian——————-plane angle
50-tesla———————magnetic flux density
51-pascal——————-pressure
52-sievert——————radiation dose equilent
53-steradian—————-solid angle
54-bacquerel—————activity of radionucloids
55-rutherford————–rate of decay of radioactive material
56-torr———————-pressure
57-fermi———————length
58-sved berg unit———-sedimentation rate
59-mho———————–conductivity
60-roentgen—————–radiation exposer x ray
61-barn———————-area
62-barrel——————-unit of liquid capacity
63-carat——————–unit for measuring mass of precious metal
64-clusec——————power of vaccum pump
65-dalton——————-atomic mass unit
67-megaton—————-explosive power of nuclear weapon
68-morgon——————orbitray unit used in genetics
67-ounce——————–unit of mass
68-rad————————obsorbed radiation dose
69-ryberg——————–atomic unit of energy
70-btu————————unit of heat
71-candela——————-luminous intensity
72-modulation—————frequency
73-persec——————–astronomical unit
74-cusec———————volumetric rate of flow
List of scientific units named after people
SI base units
• Ampere, electric current – André-Marie Ampère
• Kelvin, thermodynamic temperature – Lord Kelvin
SI derived unit
• Becquerel, radioactivity – Henri Becquerel
• Degree Celsius, temperature – Anders Celsius
• Coulomb, electric charge – Charles-Augustin de Coulomb
• Farad, capacitance – Michael Faraday
• Gray, absorbed dose of radiation – Louis Harold Gray
• Henry, inductance – Joseph Henry •
Hertz, frequency – Heinrich Rudolf Hertz
• Joule, energy, work, heat – James Prescott Joule
• Newton, force – Isaac Newton
• Ohm, electrical resistance – Georg Ohm
• Pascal, pressure – Blaise Pascal
• Siemens, electrical conductance – Werner von Siemens
• Sievert, radiation dose equivalent – Rolf Sievert
• Tesla, magnetic flux density – Nikola Tesla
• Volt, electric potential, electromotive force – Alessandro Volta
• Watt, power, radiant flux – James Watt
• Weber, magnetic flux – Wilhelm Eduard Weber
Centimeter-gram-second system of units
• Biot, electric current; Jean-Baptiste Biot
• Debye, electric dipole moment; Peter Debye
• Gauss, magnetic induction – Carl Friedrich Gauss
• Maxwell, magnetic flux – James Clerk Maxwell
• Oersted, magnetic field strength – Hans Christian Ørsted
• Galileo, acceleration; Galileo Galilei
• Eotvos, gravitational gradient; Loránd Eötvös
No longer in use
• Franklin, electric charge – Benjamin Franklin
Others
• Angstrom, distance – Anders Jonas Ångström
• Curie, radioactivity – Marie and Pierre Curie
• Decibel (i.e. tenths of Bels) dimensionless proportions and ratios, e.g. relative power levels – Alexander Graham Bell
• Degree Fahrenheit, temperature – Daniel Gabriel Fahrenheit
• Jansky, flux density – Karl Jansky
• Neper, relative power level – John Napier
• Poise, viscosity – Jean Louis Marie Poiseuille
• Röntgen, dosage of X-rays or gamma radiation – Wilhelm Röntgen
• Richter scale, earthquake power – Charles Francis Richter
• Stokes, viscosity – George Gabriel Stokes
• Svedberg, sedimentation rate – Theodor Svedberg