There are several synonyms for the word "pyaemic" which refers to the presence of pus-forming bacteria in the bloodstream. Some other terms that can be used as a substitute for "pyaemic" are septicemia, bacteremia, or blood poisoning. These words can be used interchangeably with "pyaemic" to explain a condition where bacteria from a localized infection enters the bloodstream, causing a systemic infection. Other terms that can signify similar medical conditions include sepsis, septic shock, or septicemia syndrome. In medical terminology, it is essential to accurately use these synonyms to indicate the severity of the condition and to help with proper diagnosis and treatment of patients.