See also: sims and Sims English English Wikipedia has an article on:SIMSWikipedia Noun SIMS (uncountable) Initialism of secondary ion mass spectrometry. See also SHRIMP Anagrams MISS, ISMs, isms, MSiS, Miss., miss, ISMS, MSIs, SMIs, MissWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads