Definition of protoplasm noun from the Oxford Advanced Learner's Dictionary

 

protoplasm

 noun
noun
BrE BrE//ˈprəʊtəplæzəm//
 
; NAmE NAmE//ˈproʊtəplæzəm//
 
[uncountable](biology)
 
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a clear substance like jelly which forms the living part of an animal or plant cell compare cytoplasm Word Origin mid 19th cent.: from Greek prōtoplasma (see proto-, plasma).
See the Oxford Advanced American Dictionary entry: protoplasm