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prom

[prom] /prɒm/
noun
1.
a formal dance, especially one held by a high school or college class at the end of an academic year.
Origin
1890-1895
1890-95, Americanism; short for promenade

PROM

[prom] /prɒm/
noun, Computers.
1.
a memory chip whose contents can be programmed by a user or manufacturer for a specific purpose.
Compare EPROM.
Origin
p(rogrammable) r(ead)-o(nly) m(emory)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for proms

prom

/prɒm/
noun
1.
(Brit) short for promenade (sense 1), promenade concert
2.
(US & Canadian, informal) short for promenade (sense 3)

PROM

/prɒm/
noun acronym (computing)
1.
programmable read only memory
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for proms

prom

n.

"student formal dance in celebration of graduation," 1894, American English shortened form of promenade (n.). Prom dress attested from 1975.

Online Etymology Dictionary, © 2010 Douglas Harper
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Related Abbreviations for proms

prom

a dance (from "promenade")

PROM

  1. passive range of motion
  2. premature rupture of membranes
  3. programmable read-only memory
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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9
11
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