A viscous, gelatinous substance said to differ from every known form of matter; it can solidify and be used for material purposes.
Ectoplasm is allegedly formed by mediums, spirit guides, quacks and frauds when in a “trance state”. As above defined, ectoplasm is an elaborate deception of gullible people. It doesn’t withstand scientific scrutiny.
Reference Quackery Arthur Conan Doyle, The Edge of the Unknown. New York, GP Putnam, 1930
CELL BIOLOGY Exoplasm
(1) Cytoskeleton, see there
(2) The peripheral, relatively rigid granule-free layer of the cytoplasm which was regarded as a gel that could reversibly convert to a sol
The term ectoplasm, as above defined, is not part of the working biomedical parlance, as the definitions are based on a quaintly primitive understanding of cell structures obtained by light microscopy.