Webster's English Dictionary

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protoplast

pro.to.plast \'pro-t-*-.plast\ \.pro-t-*-'plas-tik\ n [MF protoplaste, fr. 
   LL protoplastus first man, fr. Gk pro-to]plastos first formed, fr. pro-t- 
   prot- + plastos formed, fr. plassein to mold - more at PLASTER 1: one that 
   is formed first : PROTOTYPE  2a: the nucleus, cytoplasm, and plasma 
   membrane of a cell constituting a li ving unit distinct from inert walls 
   and inclusions 2b: ENERGID  - pro.to.plas.tic aj