rarefacio
Could not find rarefactum in Logeion dictionaries.
rarefactum neuter nominative singular, perfect passive participle masculine genitive plural, perfect passive participle neuter nominative singular, perfect passive participle neuter genitive plural, perfect passive participle neuter accusative singular, perfect passive participle neuter vocative singular, perfect passive participle masculine accusative singular of rarefacio
rārē-făcĭo (written also separately rārē făcĭo), fēci, factum, 3, v. a. [rarus],
- to make thin or rare, to rarefy (Lucret.): rarefieri, Lucr. 1, 648: rarefacta, id. 2, 1139; 3, 442: rareque facit, id. 6, 233; 870.
rārēfacio, fēcī, factum, ere (rarus u. facio), dünn-, locker machen, verdünnen, auflockern, terram, Lucr. 6, 870: ne (lingua) traducta ab aliquo qui in se esset succo rarefaceret, Theod. Prisc. 4. fol. 316 (b), 60: in der Tmesis, Lucr. 6, 233. – so auch rārēfīo, factus sum, fierī, die Dichte verlieren, locker werden, sich voneinander geben, Lucr. 1, 648 u.a.
See: rarefacere
rārēfăcĭō, (14) fēcī, factum, ĕre (rarus, facio), tr., raréfier : Lucr. 6, 233 || au pass. rarefio, factus : Lucr. 1, 648 ; 2, 1139.