4. Pertaining to lamentation, or those who weep. Weeping cross, a cross erected on or by the highway, especially for the devotions of penitents; hence, to return by the weeping cross, to return from some undertaking in humiliation or penitence. Weeping rock, a porous rock from which water gradually issues. Weeping sinew, a ganglion. See Ganglion. Weeping spring, a spring that discharges water slowly.