Easton's Bible Dictionary (1897)
Imperfection or bodily deformity excluding men from the priesthood, and rendering animals unfit to be offered in sacrifice (Lev. 21:17-23; 22:19-25). The Christian church, as justified in Christ, is “without blemish” (Eph. 5:27). Christ offered himself a sacrifice “without blemish,” acceptable to God (1 Pet. 1:19).
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
BLEM'ISH . For a list of ceremonial blemishes see Lev 21:18-20; Lev 22:20-24.