WordNet (r) 3.0 (2006):

SNP
    n 1: (genetics) genetic variation in a DNA sequence that occurs
         when a single nucleotide in a genome is altered; SNPs are
         usually considered to be point mutations that have been
         evolutionarily successful enough to recur in a significant
         proportion of the population of a species [syn: single
         nucleotide polymorphism, SNP]

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

SNP
       SubNetwork Protocol