The Collaborative International Dictionary of English v.0.48:

Sclerosis \Scle*ro"sis\, n. [NL., fr. Gr. (??, fr. sklhro`s
   hard.]
   1. (Med.) Induration; hardening; especially, that form of
      induration produced in an organ by increase of its
      interstitial connective tissue.
      [1913 Webster]

   2. (Bot.) Hardening of the cell wall by lignification.
      [1913 Webster]

   Cerebro-spinal sclerosis (Med.), an affection in which
      patches of hardening, produced by increase of the
      neuroglia and atrophy of the true nerve tissue, are found
      scattered throughout the brain and spinal cord. It is
      associated with complete or partial paralysis, a peculiar
      jerking tremor of the muscles, headache, and vertigo, and
      is usually fatal. Formerly referred to as multiple
      sclerosis, disseminated sclerosis, or insular
      sclerosis, but now usually called only multiple
      sclerosis, or MS.
      [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

Ms.
    n 1: a form of address for a woman [syn: Ms, Ms.]

Moby Thesaurus II by Grady Ward, 1.0:

86 Moby Thesaurus words for "MS":
   amyotrophic lateral sclerosis, article, autograph, brain disease,
   brainchild, cephalalgia, cerebral palsy, chorea, composition,
   computer printout, copy, document, draft, edited version,
   emotional disorder, engrossment, epilepsy, essay, fair copy,
   falling sickness, fiction, final draft, finished version,
   first draft, flimsy, glossopharyngeal neuralgia, headache,
   herpes zoster, holograph, ischialgia, letter, literae scriptae,
   literary artefact, literary production, literature, lucubration,
   manuscript, matter, migraine, multiple sclerosis, nervous disorder,
   neuralgia, neuritis, neuropathy, nonfiction, opus,
   organic psychosis, original, palsy, paper, parchment, penscript,
   piece, piece of writing, play, poem, polyneuritis,
   pressure neuropathy, priapism, printed matter, printout,
   production, radiculitis, reading matter, recension,
   sciatic neuritis, sciatica, screed, scrip, script, scrive, scroll,
   second draft, shaking palsy, shingles, spastic paralysis,
   the jerks, the written word, tic douloureux, toxic psychosis,
   transcript, transcription, typescript, version, work, writing



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MS
       Message Store


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MS
       Memory Stick


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MS
       Meta Signaling (ATM, ???)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MS
       MicroSoft (manufacturer, MS)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MS
       Mobile Station (GSM, mobile-systems)