Etymology: From (term, sc=polytonic, -, tr=proto-, , first, lang=el) + (term, sc=polytonic, , tr=plasma, , something molded, lang=el). The word was in , meaning "first created thing," and may have existed in Medieval in a different sense. It was used by Czech physiologist w:Johannes Evangelista Purkinje, Johannes Evangelista Purkinje to denote the gelatinous fluid found in living tissue. This word prevailed, though Germanic language purists preferred (term, urschleim, , original mucus).
- (cytology) The entire contents of a cell comprising the nucleus and the cytoplasm. It is a semi-fluid, transparent substance which is the living matter of plant and animal cells.
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Full Definition of protoplasm