'RIS' definitions:

Definition of 'Ris'

From: GCIDE
  • Ris \Ris\, n. [AS. hr[imac]s; akin to D. rils, G. reis, OHG. hr[imac]s.] A bough or branch; a twig. [Obs.] [1913 Webster]
  • As white as is the blossom upon the ris. --Chaucer. [1913 Webster]

Acronyms for 'RIS'

From: V.E.R.A.
  • Remote Installation Service (MS, ADS)