Dictionary Definition:
Lujjana (nt.) [fr. lujjati; a word peculiar to Pali dog- matics] breaking up, crumbling away, dissolution DhsA 47 (in etym. of loka=lujjana -- palujjan' aṭṭhena vaṭṭaŋ), 308 (id.); Vism 427 (id.).