Dictionary Definition:
Adhigama [fr. adhigacchati] attainment, acquisition; also fig. knowledge, information, study (the latter mainly in Miln) D iii.255; S ii.139; A ii.148; iv.22, 332; v.194; J i.406; Nett 91; Miln 133, 215, 358, 362, 388; PvA 207.