The Collaborative International Dictionary
Delirifacient
Delirifacient \De*lir`i*fa"cient\, a. [Delirium + L. faciens, -entis, p. pr. of facere to make.] (Med.) Producing, or tending to produce, delirium. -- n. Any substance which tends to cause delirium.
Wiktionary
delirifacient
a. (context medicine English) Producing, or tending to produce, delirium. n. (context medicine English) Any substance that tends to cause delirium.