intransitive verb.
To undo the joining of; separate.
intransitive verb.
To become separated.
The Century Dictionary and Cyclopedia
To sever the junction or union of; dissolve or break up the connection of; disunite; sunder: as, to disjoin the parts of a machine; they have disjoined their interests.
To prevent from junction or union; keep separate or apart; divide.
To be separated; part.
the GNU version of the Collaborative International Dictionary of English
transitive verb.
To part; to disunite; to separate; to sunder.