Dictionary Definition:
Vavatthāna (nt.) [fr. vi+ava+sthā; cp. late Sk. vya- vasthāna which occurs in Ep. Sk. in meaning "stay"] determination, resolution, arrangement, fixing, analysis Ps i.53; Vin iv.289; Vism 111, 236 (=nimitta), 347 (defn); Miln 136; KhA 23.