cytococcus

from The Collaborative International Dictionary of English v.0.48

Cytococcus \Cy`to*coc"cus\ (-k?k"k?s), n.; pl. {Cytococci}
   (-s?). [NL., fr. Gr. ky`tos hollow vessel + ???? kernel.]
   (Biol.)
   The nucleus of the cytula or parent cell. --H[ae]ckel.
   [1913 Webster]