from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The rapid, periodic, jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. rapid eye movement
  • n. remaining time: In music, the time remaining in a track.
  • n. A programming language statement used for documentation (in BASIC for example); also used in DOS batch files.
  • n. rare earth metal(s).


r(apid) e(ye) m(ovement).
(American Heritage® Dictionary of the English Language, Fourth Edition)
From the initial letters of rapid eye movement. (Wiktionary)
Shortened from remaining. (Wiktionary)
Shortened from remark. (Wiktionary)
Shortened from rare earth metal. (Wiktionary)



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