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nounGerman physiologist and histologist who in 1838 formulated the cell theory (1804-1881)
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Definition that contains schleiden
- cell theory (biology) the theory that cells form the fundamental structural and functional units of all living organisms; proposed in 1838 by Matthias Schleiden and by Theodor Schwann
- cell doctrine (biology) the theory that cells form the fundamental structural and functional units of all living organisms; proposed in 1838 by Matthias Schleiden and by Theodor Schwann