Dis‐un″ion (?), n. [Pref. dis- + union: cf. F. désunion.] 1. The termination of union; separation; disjunction; as, the disunion of the body and the soul.
2. A breach of concord and its effect; alienation.
Such a disunion between the two houses as might much clou� the happiness of this kingdom. Clarendon.
3. The termination or disruption of the union of the States forming the United States.
I have not accustomed myself to hang over the precipice of disunion. D. Webster.