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RIS

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RIS¹

noun RISs · R.I.S. · R. I. S.

  1. abbreviation, initialism Initialism of research information system

    Similar: CRIS

  2. abbreviation, initialism Initialism of radiologic/radiological information system
  3. Internet, abbreviation, initialism Initialism of reverse image search
  4. abbreviation, initialism Initialism of rail interface system or rail integration system

    Similar: RAS

RIs²

noun

  1. plural plural of RI

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Cite this
MLA

"RIS." Wiktionary, via Micwyn, micwyn.com/word/ris. Accessed 6 Nov. 2026.

APA

RIS. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/ris

Chicago

"RIS." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/ris.

BibTeX
@misc{ris_2026,
  title = {RIS},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ris},
  urldate = {2026-11-06}
}