| despeciated antitoxin | An antitoxic serum treated in an appropriate manner to alter the species-specific protein, so that a person sensitised to the animal protein is not likely to have a serious reaction when the antitoxin is administered. (05 Mar 2000) |
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| despeciation | 1. Alteration of, or loss of species characteristics. 2. Removal of species-specific antigenic properties from a foreign protein. (05 Mar 2000) |