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

protoplasm

noun
 
/ˈprəʊtəplæzəm/
 
/ˈprəʊtəplæzəm/
 [uncountable] (biology)
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  1. a soft, clear substance like jelly that forms the living part of an animal or plant cell compare cytoplasmTopics Biologyc2
    Word Originmid 19th cent.: from Greek prōtoplasma (see proto-, plasma).
See protoplasm in the Oxford Advanced American Dictionary
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