veronal Chem.
(ˈvɛrənəl)
[a. G. veronal.]
Diethyl-malonyl-urea, a white crystalline substance used as a hypnotic. Also attrib.
| 1903 Merck's Ann. Rep. XVII. 183 Veronal has been thoroughly tested in a large number of noted public and private hospitals. 1904 Lancet 23 Jan. 223/2 A box of veronal cachets, each containing eight grains. |