See Also: neurosarcoma(medicine)
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Substitution (medicine) and neurosarcoma (medicine)


Substitution (medicine)


substitution


1. The act of putting one thing in the place of another, especially the chemical replacement of one element or radical by some Other.

2. A defense mechanism, operating unconsciously, in which an unattainable or unacceptable goal, emotion or object is replaced by one that is attainable or acceptable.

Origin: L. Substitutio, from statuere = to place


neurosarcoma (medicine)


neurosarcoma
<tumour> A sarcoma with neuromatous elements; includes neurofibrosarcoma, neurogenic sarcoma, and malignant schwannoma.