Sŏp'ō-rĭf'er-oŭs, a.

a. [Lat. soporifer, from sopor, a heavy sleep, and ferre, to bring; It. & Sp. soporifero, Fr. soporifère.] Causing sleep, or tending to produce it; somniferous; soporific.

Synonyms— Somniferous; narcotic; opiate; anodyne.