What is another word for "disjunction"?

Roget's Thesaurus (1911) lists these synonyms for "disjunction": abstract, ace, alone, analysis, analytical, analyze, and, apart, atomic, azygous, beat, break, but, catalysis, catalytic, combine, compact, corruption, crumble, decentralize, decompose, decomposed, decomposition, decompound, desolate, dine, disembody, disintegration, disjoin, disperse, dispersion, dissect, dissection, dissolution, dissolve, dreary, dust, electrolyze, else, first.