Etymology: formed as disjoinv. + -ersuffix1.Previous versions of the OED give the stress as: disˈjoiner.
rare.
One who or that which disjoins.
ΘΚΠ
the world > relative properties > wholeness > mutual relation of parts to whole > separation > [noun] > disjunction, disunion, or disconnection > that which disjoins
disjoiner1654
1654 Z. CokeArt of Logick 10 This disjunction of parts must be such a disjoyner which mensurates the whole.
This entry has not yet been fully updated (first published 1896; most recently modified version published online June 2019).