Look up ROM in Wiktionary, the free dictionary.

Rom, or ROM may refer to:

Biomechanics and medicine

• Risk of mortality, a medical classification to estimate the likelihood of death for a patient
• Rupture of membranes, a term used during pregnancy to describe a rupture of the amniotic sac
• Range of motion, e.g. of joints in physiotherapy

Computers and mathematics

• Android ROM, a file containing executable instructions of an Android OS
• Read-only memory, a type of storage media that is used in computers and other electronic devices
  • ROM cartridge, a portable form of read-only memory
  • ROM image, a computer file which contains a copy of the data from a read-only memory chip
• ROM (MUD), a popular MUD codebase

Engineering

• Range of motion, the distance that a movable object may normally travel while properly attached to another object
• RFID on metal, radio-frequency identification (RFID) tags which perform a specific function when attached to metal objects
• Rough order of magnitude, a type of cost estimation

Fiction and entertainment

• Ethan Rom, one of the Others in the TV series Lost
• Rom (comics), a Marvel Comics superhero based on the Parker Brothers toy of the same name
• Rom (Star Trek), a Ferengi character in Star Trek: Deep Space Nine
• Rom, a fictional character in Hyperdimension Neptunia Mk2
• Runes of Magic, a popular MMORPG
• Rom, a boss in the videogame Bloodborne
• Read-Only Memory (publisher), a British publisher of art books related to the Britsoft era of video game development
• Rom (album)

Places and structures

• River Rom, England
• Rom (river), Switzerland and Italy
• Rom, Afghanistan, a village in Sar-e Pol province, Afghanistan
• Rom, Deux-Sèvres, a commune in the Deux-Sèvres department in western France
• Rom (Mecklenburg), a community in the district of Parchim, Mecklenburg-Vorpommern, Germany
• Rom, a district of Morsbach in North Rhine-Westphalia, Germany
• Rom, Iran, a village in South Khorasan Province, Iran
• Royal Ontario Museum, a museum in Toronto, Ontario, Canada
• The Rom, skatepark in Hornchurch, East London, England
• Romania, UNDP code and former IOC code

Society

• Rom (plural Roma), one of the ethnic designations used by the Romani people
  • rom, Romani language, language code ISO 639 alpha-2
• Rom or ROM, system of Indigenous Australian customary law
  • ROM ceremony, a Yolngu ceremonial practice

Other uses

• Return on margin, a judge of performance based on the net gain or net loss compared to the perceived risk
• Refuel On the Move, a DoD logistic action
• Epistle to the Romans, a book of the Bible commonly abbreviated Rom.