a. Obs. In 7 ætherical. [f. as prec. + -ICAL.] Of, pertaining to, or of the nature of, ether (in quot. with reference to ETHER 1).
1655–60. Stanley, Hist. Philos. (1701), 329/1. Possidonius defineth a Star, a Divine Body, consisting of ætherical fire.
