Source : Webster's Revised Unabridged Dictionary (1913)

Poikilocyte \Poi"ki*lo*cyte\ (poi"k[i^]*l[-o]*s[imac]t), n. [Gr.
   poiki`los diversified, changeable + ky`tos hollow vessel.]
   (Physiol.)
   An irregular form of corpuscle found in the blood in cases of
   profound an[ae]mia, probably a degenerated red blood
   corpuscle.