What does OR stand for?

The list of OR abbreviation meanings.

Stands For|554Abbreviated As|0Related|0
8
Orbicularis oris
7
Oxytocin Receptor
6
Odd Ratios
6
Operations Research(Project, Product Development, Project Management)
6
Optical Resonance
6
Ostwald ripening
6
Oestrogen receptors
6
Orienting Response
6
Offence Report
6
Ohmic Resistance
6
Opus Romano
6
Outflow Resistance
5
Odds ration
5
Odinic Rite
5
Operational Requirement(Military, Technology)
5
Open Resection
5
Ore Refining
5
Orienting Reflex
4
Obesity-resistant
4
Odds Ratio Estimate
8 years ago|36k views|share |citing 
APASmart Define. (2018). or. Retrieved September 23, 2026, from http://smartdefine.org/or/abbreviations/f
ChicagoSmart Define. 2018. "or" http://smartdefine.org/or/abbreviations/f (accessed September 23, 2026).
HarvardSmart Define 2018, or, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/or/abbreviations/f>.
MLASmart Define. "or" 16 February 2018. Web. 23 September 2026. <http://smartdefine.org/or/abbreviations/f>