noun Pharmacology.
a compound, C 20 H 29 N 3 O 2 , used as a local and spinal anesthetic.

di-1 + bu(tyl) + (co)caine

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dibucaine di·bu·caine (dī-byōō'kān')
A local anesthetic used topically on the skin and mucous membranes or administered by injection into the subarachnoid space to produce spinal anesthesia.

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Dibucaine produces serious systemic effects on both the central nervous system and the cardiovascular system.
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