Source : Webster's Revised Unabridged Dictionary (1913)

Karyoplasma \Kar`y*o*plas"ma\, n. [NL., fr. Gr. ? a num + ? a
   thing molded.] (Biol.)
   The protoplasmic substance of the nucleus of a cell:
   nucleoplasm; -- in opposition to kytoplasma, the protoplasm
   of the cell.