OR

(redirected from Ordinary Proton)
AcronymDefinition
OROregon (US postal abbreviation)
OROperating Room
OROn Request
ORO-Ring
OROutdoor Research
OROffice of Record
OROfficial Records (Of the American Civil War; historical citations)
OROrange Range (Japanese rock band)
OROrganization Administrator
ORObject Reference (CORBA)
OROperating Range
OROpen Repair
OROperations Research
OROperations Room
OROperations Requirements
OROperations Resources
OROntario Reports
OROak Ridge
OROfficer Representative
OROn-Site Representative
OROpen Root (welding)
ORObject Recognition
ORObjective Response
OROptical Router
OROdds Ratio (element of statistical regression analysis, science)
OROverall Resistance
OROfficial Receipt
OROxygen Reduction
OROlympic Record
OROperational Reserve
OROperational Review
OROperational Research
OROperational Requirement
OROperational Reliability
OROther Ranks (British military)
ORObserved Ratio
OROutreach
OROptimal Routing (telecom)
OROnion Ring
OROverload Relay
OROccupancy Rate
ORObject Reuse
OROccurrence Report
OROffensive Rebound (basketball)
OROrganized Rhyme (rap group)
OROperational Readiness
OROverride
ORObject to Relational
OROperating Reactor
OROpen Repositories (Conference)
OROutside Rehearsals
OROmani Rial (national currency)
OROperationally Ready
OROsservatore Romano (Vatican newapaper)
OROmnidirectional Range
OROrgone (energy)
OROndernemingsraad
OROwn Recognizance
OROver Rate (cricket scoring)
OROwner's Risk
OROwyhee River (Snake River; various locations)
OROnion Routing
OROmega Rho (honors society for Operations Researchers)
OROristano, Sardegna (Italian province)
OROffence Report (police incident code; New Zealand)
OROriginator / Recipient
OROutward Radial
OROrdinary Proton (event)
OROrthogonal Region
OROrdnance Requirement
OROwasco River Railroad
OROutward Routing
OROld Ruymian (alumni of Chatham House Grammar School for boys, Ramsgate, Kent, UK)
OROnly Replication/Replicating
References in periodicals archive ?
Most of the matter in the universe is not of the Earthly variety, but rather consists of some invisible (hence "dark") species of subatomic particles with very little tendency to interact with ordinary protons, neutrons and electrons.
Scientists first created antihydrogen nearly 3 years ago by joining positrons with antiprotons, which are as massive as ordinary protons but negatively charged (SN: 11/30/96, p.
And unlike a favored version of the Big Bang, QSSC can explain the amount of primordial deuterium without having to invoke the notion of dark matter - hypothetical material that doesn't emit light and is thought to consist of exotic particles rather than ordinary protons and neutrons.