What does OR stand for?

The list of OR abbreviation meanings.

Stands For|554Abbreviated As|0Related|0

554 entries under topic. ×

4
Operations Room(Science)
2
Oak Ridge(Science)
2
Observation Request(Science)
2
Observed Ratio(Science)
2
Operating Reactor(Science)
2
Operations Requirements(Science)
2
Ordinary Proton(Science)
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APASmart Define. (2018). or. Retrieved September 21, 2026, from http://smartdefine.org/or/abbreviations/f/Science
ChicagoSmart Define. 2018. "or" http://smartdefine.org/or/abbreviations/f/Science (accessed September 21, 2026).
HarvardSmart Define 2018, or, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/or/abbreviations/f/Science>.
MLASmart Define. "or" 16 February 2018. Web. 21 September 2026. <http://smartdefine.org/or/abbreviations/f/Science>