Correct spelling for the English word "bullation" is [bʊlˈe͡ɪʃən], [bʊlˈeɪʃən], [b_ʊ_l_ˈeɪ_ʃ_ə_n] (IPA phonetic alphabet).
1. The formation of bullae. 2. A swelling or inflation.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.