The Collaborative International Dictionary of English v.0.48:

Kytomiton \Ky*tom"i*ton\ (k[-i]*t[o^]m"[i^]*t[o^]n), n. [NL.,
   from Gr. ky`tos a hollow vessel + mi`tos a thread.] (Biol.)
   See Karyomiton.
   [1913 Webster]