COTTONMOUTHS
\kˈɒtənmˌa͡ʊθs], \kˈɒtənmˌaʊθs], \k_ˈɒ_t_ə_n_m_ˌaʊ_θ_s]\
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A genus of venomous snakes of the subfamily Crotalinae. Twelve species of this genus are found in North and Central America and Asia. Agkistrodon contortrix is the copperhead, A. piscivorus, the cottonmouth. The former is named for its russet or orange-brown color, the latter for the white interior of its mouth. (Goin, Goin, and Zug, Introduction to Herpetology, 3d ed, p336; Moore, Poisonous Snakes of the World, 1980, p75)
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Word of the day
Immunologic Desensitization
- Immunosuppression by the administration increasing doses antigen. Though exact mechanism is not clear, therapy results increase in serum levels of allergen-IMMUNOGLOBULIN G, suppression specific IgE, and an suppressor T-cell activity.