a. [ Idio- + &unr_; to appear. ] (Crystallog.) Exhibiting interference figures without the aid of a polariscope, as certain crystals. [ 1913 Webster ]
a. [ Gr. &unr_;, fr. &unr_; to show or shine through;
Another cloud in the region of them, light enough to be fantastic and diaphanous. Landor. [ 1913 Webster ]
adv. Translucently. [ 1913 Webster ]