One of the mysteries of the English language finally explained.
The colourless material comprising the living part of a cell, including the cytoplasm, nucleus, and other organelles.
- ‘It was eventually realised that the culprit was a non-cellular form of ‘life’ that could diffuse through the cell walls and membranes into the cell's protoplasm.’
- ‘It is likely that lignified cells that lack membranes and protoplasm also lack sensitivity.’
- ‘Their protoplasm has a distinct reticular structure and contains-especially in the experiments with the introduction of egg yolk into the subcutaneous tissue-numerous clear vacuoles and granular inclusions.’
- ‘The protoplasm is extruded as pseudopods via the aperture and through any perforations that may be present in the test.’
- ‘They do not store vital dyes and, in the structure of their nucleus and the behavior of their protoplasm, resemble mesenchymal cells.’
Mid 19th century: from Greek prōtoplasma (see proto-, plasma).
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