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computer memory in which program instructions, operating procedures, or other data are permanently stored, generally on electronic chips during manufacture, and that ordinarily cannot be changed by the user.
Compare PROM, RAM.

r(ead)-o(nly) m(emory)



Romans (New Testament).
Also, Rom (for defs 2, 5).


roman (printing type).
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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World English Dictionary
Rom (rɒm)
n , pl Roma
a male Gypsy

ROM (rɒm)
n acronym for
read only memory: a storage device that holds data permanently and cannot in normal circumstances be altered by the programmer

abbreviation for
roman (type)

abbreviation for
1.  Roman
2.  Romance (languages)
3.  Bible Romans
4.  Romania(n)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"male gypsy," 1841, see Romany.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
ROM   (rŏm)  Pronunciation Key 
Short for read-only memory. Computer hardware that stores programs or data that cannot be added to, modified, or deleted. ROM does not require power to maintain its contents, and is often used to save instructions that enable the computer's operating system to communicate with other hardware.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

ROM definition

Acronym for read only memory, which refers to a memory system, such as a commercial CD, which can be read but which cannot be altered. (Compare RAM.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Computing Dictionary

ROM definition

Read-Only Memory

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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American Heritage
Abbreviations & Acronyms
  1. range of motion

  2. range of movement

  3. read-only memory

  1. Roman

  2. Romance

  3. Romania

  4. Romanian

  5. Romans

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
In fact, the rom people warn you that you may gain a few pounds in the first few months of use.
F rom the moment these two stepped into the ring, the games began.
Let's take a look at the preview for what could be the world's inaugural apocalyptic rom-com below.
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