Ps meaning in Academic & Science ?

Answer: What is Positronium mean?

Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. The system is unstable: the two particles annihilate each other to predominantly produce two or three gamma-rays, depending on the relative spin states. The energy levels of the two particles are similar to that of the hydrogen atom (which is a bound state of a proton and an electron). However, because of the reduced mass, the frequencies of the spectral lines are less than half of those for the corresponding hydrogen lines.

reference

Full Form	Category
Per Second	Academic & Science
Proccesoor Storage	Academic & Science
Pirate School	Academic & Science
Pilot Study	Academic & Science
Pleat style (Architecture)	Academic & Science
Profile Steel	Academic & Science
Photon Stop	Academic & Science
Photosystem	Academic & Science
Political Science	Academic & Science
Physiological Society	Academic & Science
Positronium	Academic & Science
Patriotic Service	Academic & Science
Positively Superior	Academic & Science
Physical Science	Academic & Science
Paleontological Society	Academic & Science
Psychonomic Society	Academic & Science
Philological Society	Academic & Science
Protein Society	Academic & Science
Psychometric Society	Academic & Science
Planetary Society	Academic & Science
Payson Smith Hall, University of Southern Maine	Academic & Science
Purchase Sale	Accounts and Finance
Point Source	Accounts and Finance
Prompt Side	Arts
Priority Sector	Banking
Preference Shares	Banking
Power Solutions	Business
Production Sample	Business
Prestwood Software	Business
Private Stockroom	Business
Power Steering	Business
Proprietary Standards	Business
Pure Stock	Business
Public Service	Community
Public School	Community
Patrick Star	Community
Polite Society	Community
Pluralistic School	Community
Phantasy Star	Community
Perez Sanz	Community
Personal Skills	Community
Primary School	Community
Play School	Community
Program Specialist	Community
Paola Santiago	Community
Priority Seating	Community
Performance Standard	Community
Post Scrip	Community
Parochial School	Community
Pastel Society	Community
Pre School	Community
PCSC ISDN Switch	Computer and Networking
Product Safety	Computer and Networking
Program Start	Computer Assembly Language
Program Stream	Computer Assembly Language
Progressive Scan	Computer Hardware
Processing System	Computer Hardware
Pre-set	Computer Hardware
Pet Society	Computing
Power Solution	Computing
Physically Sequential	Computing
Problem Sheet	Computing
Process Status	Computing
Powershell	Computing
Short For PlayStation	Computing
Short For PlanetSide	Computing
Power Save	Computing
Palestinian Territory, Occupied	Country Names
Pulse Shaping	Electronics
Polar Stereographic	Electronics
Pulse Shape	Electronics
Porous Silicon	Electronics
Adobe Postscript Document (text/graphics)	File Type
Permanent Slog	General
Pathwork Studies	General
Puss Sack	General
Population Size	General
Pompous Sausage	General
Plambeck Sietas	General
Power Setting	General
Pennsylvania Series	General
Peer Storage	General
Plash Speed	General
Partial Switch	General
Photometric Sample	General
Product Standard	General
Please see	General
Project Superintendent	General
Pink Skies	General
Phosphorylated Serine	General
Property Specification	General
Power Sum	General
Project Studio	General
Pagos Seleccionados	General
Physical State	General
Probably Something	General
Pitching Staff	General
Pedestal Sub	General
Pre Signatorum	General
Proxy Stub	General
Period Sydrome	General
Psssssss Shouldnt	General
Popcorn Shrimp	General
Pauline Shirley	General
Plate Strip	General
Philosophers Stone	General
PolyStyrene	General
Picture Sleeve	General
Piecewise Smooth	General
Pro Series	General
Paint Shop	General
Productions Sample	General
Preventative Service	General
Personal Suffix	General
Private Sector	General
Pratitya Samutpada	General
Plus subscription	General
Protection and Switchgear	General
Purrfect Spots	General
Personality Setting	General
Pre Series	General
PostScript	General
Peaux Seches	General
Playstation	General
Perfectly Sane	General
Parametric Stereo	General
Polzter Surprise	General
Problem Set	General
Plating Shop	General
Pumpkin Seeds	General
Pfunde Starke	General
Phase Space	General
Personal Server	General
Pressure Sensitive	General
Please Sire	General
Princess Sophie	General
Pretty Smart	General
Personal Safety	General
Product Size	General
Port Sarim	General
Phy Science	Governmental
Public Safety	Governmental
Parliament Soros	Governmental
Particle Size	Governmental
Planning Staff	Governmental
Parliamentary Session	Governmental
Professional Services	Governmental
Parti Socialiste	Governmental
Police Station	Governmental
Peach State	Governmental
PARAS	Indian Railway Station
Postskriptum	International
And Pss And So	International
Post Scriptum	International
Partido Socialista	International
Pescara (Provence)	International
PferdeStärke	International
Pull Sits	International
Perfect Sayings	Internet
Political Skills	Jobs
Performance Spectrum	Jobs
Private Secretary	Jobs
Police Sergeant	Jobs
Pico Seconds	Measurement Unit
Per Spring	Measurement Unit
Pyloric Sphincter	Medical
Pyloric Stenosis	Medical
Pyriform Sinus	Medical
Pulmonic Stenosis	Medical
Pain Score	Medical
Palmaz-Schatz	Medical
Pap Smear	Medical
Papillary Serous	Medical
Papulosquamous	Medical
Paradoxical Sleep	Medical
Paraffin Section	Medical
parasympathetic	Medical
Partial Saturation	Medical
Partial Seizure	Medical
Passive Smoking	Medical
Pathological Stage	Medical
Patient Survey	Medical
Peak Systolic	Medical
Performance Score	Medical
Paraspinous	Medical
Physical Status	Medical
Psychotropic Substances	Medical
Present Symptoms	Medical
Performance Status	Medical
personal service personality scale	Medical
Pharmaceutical Services	Medical
Phosphatidyl Serine	Medical
photosensitive	Medical
Photosynthesis	Medical
Physiologic Saline	Medical
phytosterol	Medical
Pituitary Stalk	Medical
Plastic Surgery	Medical
Population Spike	Medical
Porter-Silber	Medical
Postmaturity Syndrome	Medical
Presenting Symptom	Medical
Pressure Sore	Medical
Pressure Support	Medical
Primitive Streak	Medical
Prognostic Score	Medical
Protamine Sulphate	Medical
protein S	Medical
Psychogenic Seizure	Medical
Pubertal Stage	Medical
Pulmonary Sarcoidosis	Medical
Pulmonary Stenosis	Medical
Pulmonary Surfactant	Medical
Penicillin Susceptible	Medical
Premenstal Syndrome	Medical
Post Silly	Messaging
Painfully Sarcastic	Messaging
Poor Schumck	Messaging
Physical Strength	Military and Defence
Peer Support	Military and Defence
Piercing Slashing	Military and Defence
Packet Switch	Military and Defence
Personnel Services	Military and Defence
Parallel Track Single-unit	Military and Defence
Processing Subsystem	Military and Defence
Pole Smoker	Military and Defence
Path Separator	Networking
Print Server	Networking
Parallel Sessions	Networking
Processor Sharing	Networking
Physics of Sports	Physics Related
Presidential Suite	Real Estate
Palestinian Territories	Regional
Pashto language	Regional
Pashto	Regional
Pittsburg and Shawmut Railroad Company	Regional
Pittsburg and Shawmut Railroad	Regional
Palestine	Regional
Photoshop	Softwares
Personalized Setting	Softwares
Performance Space	Space Science
Planetary and Solar	Space Science
Parachute Subsystem	Space Science
Payload Specialist	Space Science
Payload Station	Space Science
Payload Support	Space Science
Power Supply	Space Science
Pressure Switch	Space Science
Prime Select	Space Science
Performance Supplement	Sports
Penalty Shot	Sports
Practice Sheet	Sports
Parent Shelf	Stock Exchange
Phone Service	Telecommunication