The Collaborative International Dictionary of English v.0.48:

Cytoplasm \Cy"to*plasm\ (s?"t?-pl?z'm), n. [Gr. ky`tos hollow
   vessel + ???? a mold.] (Biol.)
   The substance of the body of a cell, as distinguished from
   the karyoplasma, or substance of the nucleus. --
   Cy`to*plas"mic (-pl?z"m?k), a.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cytoplasm
    n 1: the protoplasm of a cell excluding the nucleus; is full of
         proteins that control cell metabolism [syn: cytoplasm,
         cytol]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "cytoplasm":
   animal cell, bioplast, cell, cellular tissue, cellule,
   chromatoplasm, coenocyte, corpuscle, ectoplasm, endoplasm, energid,
   eucaryotic cell, germ cell, plant cell, plasmodium,
   procaryotic cell, protoplasm, reticulum, somatic cell, syncytium,
   trophoplasm