the world > relative properties > wholeness > mutual relation of parts to whole > separation > separation or detachment > become detached [verb (intransitive)] > fall off or out (5)
intransitive. To come loose or become detached and drop off.
intransitive. Of leaves, hair, feathers, teeth, etc.: to become detached and drop off.
intransitive. To become detached and drop off.
intransitive. To fall forward or out; to come out of something. Now archaic.
Botany. intransitive. Of a leaf or other part: to undergo abscission; = abscise, v. 2b.