The Collaborative International Dictionary of English v.0.48:

Haemapoietic \H[ae]m`a*poi*et"ic\ (h[e^]m`[.a]*poi*[e^]t"[i^]k
   or h[=e]`m[.a]-), a. [H[ae]ma- + Gr. poihtiko`s productive.]
   (Physiol.)
   Blood-forming; as, the h[ae]mapoietic function of the spleen.
   [1913 Webster]