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therapeutic index

any of several indices relating the clinical effectiveness of a drug to its safety factor, the most common being the therapeutic ratio. Other therapeutic indices include the ratio of the minimum toxic dose to the minimum effective dose and the difference between the minimum effective dose and the minimum toxic dose.

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Psychology term of the day

May 8th 2024

midbrain

midbrain

n. a relatively small region of the upper brainstem that connects the forebrain and hindbrain. It contains the tectum (and associated inferior and superior colliculi), tegmentum, and substantia nigra. Also called mesencephalon.