LAUDANUM
laudanum, tincture of opium
(noun) narcotic consisting of an alcohol solution of opium or any preparation in which opium is the main ingredient
Source: WordNet® 3.1
Etymology
Noun
laudanum (usually uncountable, plural laudanums)
A tincture of opium, once widely used for various medical purposes and as a recreational drug.
Verb
laudanum (third-person singular simple present laudanums, present participle laudanuming, simple past and past participle laudanumed)
(transitive) To add laudanum to (a drink or the like).
(rare) To cause (a person) to be high on laudanum.
Source: Wiktionary
Lau"da*num, n. Etym: [Orig. the same wort as ladanum, ladbdanum: cf.
F. laudanum, It. laudano, ladano. See Ladanum.]
Definition: Tincture of opium, used for various medical purposes.
Note: A fluid ounce of American laudanum should contain the soluble
matter of one tenth of an ounce avoirdupois of powdered opium with
equal parts of alcohol and water. English laudanum should have ten
grains less of opium in the fluid ounce. U. S. Disp. Dutchman's
laudanum (Bot.) See under Dutchman.
Source: Webster’s Unabridged Dictionary 1913 Edition