polycythaemia

/P AA0 L IY0 K IH0 TH IY1 M IY0 AH0/
noun
  1. 1

    A rare disorder in which the bone marrow produces an abnormally large amount of blood cells, often red blood cells.

Source: https://en.wiktionary.org/wiki/polycythaemia, https://en.wiktionary.org/wiki/polycythemia