Meaning of RAREFIED in English

RAREFIED

adj. esoteric; elite; meant only for the initiated or the select few; very refined; of or pertaining to a select group; exalted, elated, euphoric, in high spirits; of extremely high quality in character or style (Literature); having low density, of lower pressure than usual

Explanatory English dictionary bed edition.      Толковый словарь английского языка Редакция bed.