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Medical Definition of Tephrylometer
1. An instrument for measuring the thickness of the cerebral cortex; it consists of a graduated tube of thin glass which is inserted into the brain substance, so the depth of the gray matter can be read off on the scale. Origin: G. Tephros, ashen, + hyle, stuff, + metron, measure (05 Mar 2000)
Lexicographical Neighbors of Tephrylometer
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