The BA passage (and JLA and LJLA quotations of it, e.g., PJ Lev13:10) was early on (see LXX) as well as until recently (see e.g., BDB) understood as "pure wool"; see M. Sokoloff, JBL 95 (1976): 277-79. Whether the targumist understood it as such, of course, is uncertain Page refs. in other dictionaries: DJBA: 775b; Jastrow: 932; Tal Sam: 546;