Medical terms

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Erythematic:Abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation)

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Peritonitis:inflamation of a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera. Appendicitis?

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Phthisis: An infectious disease producing lesions especially of the lungs. No longer in scientific use: consumption (no longer in scientific use), phthisic (no longer in scientific use), tuberculosis, white plague.