Definition of alloplasm
: differentiated active protoplasm (as myofibrils, tonofibrils, and cilia); also : certain protoplasmic derivatives (as cell walls or intercellular substances)
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Origin and Etymology of alloplasm
International Scientific Vocabulary all- + -plasm; probably back-formation from alloplasmatic, from all- + plasmatic; originally formed as German alloplasmatisch
First Known Use: circa 1939
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