The Collaborative International Dictionary of English v.0.48:

Septicaemia \Sep`ti*cae"mi*a\, n. [NL., from Gr. ???
   putrefactive + ??? blood.] (Med.)
   A poisoned condition of the blood produced by the absorption
   into it of septic or putrescent material; blood poisoning. It
   is marked by chills, fever, prostration, and inflammation of
   the different serous membranes and of the lungs, kidneys, and
   other organs.
   [1913 Webster]

WordNet (r) 3.0 (2006):

septicaemia
    n 1: invasion of the bloodstream by virulent microorganisms from
         a focus of infection [syn: blood poisoning, septicemia,
         septicaemia]