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- noun medicine, colloquial : A
diagnosticand at times therapeutic procedureperformed to collect a sample of cerebrospinal fluidfor biochemical, microbiological, and cytological analysis, or rarely to relieve increased intracranial pressure.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun removal by centesis of fluid from the subarachnoid space of the lumbar region of the spinal cord for diagnostic or therapeutic purposes
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