n. [ From Bromine. ] (Pharm.) A colorless or white crystalline compound, (CH2)6N4C2H5Br, used as a sedative in epilepsy. [ Webster 1913 Suppl. ]
n. [ Formic + aldehyde + -in. ] (Chem.) An aqueous solution of formaldehyde, used as a preservative in museums and as a disinfectant. [ Webster 1913 Suppl. ]