Stu`pe*fa"cient (?), a. [L. stupefaciens, p.pr. of stupefacere to stupefy; stupere to be stupefied + facere to make. Cf. Stupefy.] [Written also stupifacient.]

Producing stupefaction; stupefactive.

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n. Med.

Anything promoting stupefaction; a narcotic.

 

© Webster 1913.