Definition
An irresistible or uncontrollable impulse to indulge in intoxication, whether by alcohol or other drugs such as opium. In nineteenth and early twentieth century medical jurisprudence, dipsomania was classified as a form of insanity — specifically, one of the minor or partial manias — and was invoked in criminal and civil proceedings to argue that a person's capacity for rational self-control was pathologically impaired. The term functioned as both a medical diagnosis and a legal category, bridging questions of mental competence, criminal responsibility, and civil liability arising from intoxicated conduct.
Common Language
Modern common usage (Wiktionary): Addiction to alcohol; more specifically, periodic alcoholism characterized by bouts of heavy drinking rather than continuous indulgence. Also used loosely to mean a strong craving for something.
Historical common usage (Webster's 1913): A morbid and uncontrollable craving, often periodic, for drink, especially alcoholic liquors; also improperly used to denote acute and chronic alcoholism.
The gap between common and legal meaning is subtle but consequential. Ordinary usage treats dipsomania as a descriptive label for compulsive drinking behavior. Legal usage in the historical sources goes further: it situates the condition within insanity doctrine, raising the formal question of whether the irresistible impulse negates criminal mens rea or excuses conduct that would otherwise attract liability. A researcher encountering dipsomania in a legal source should not read it as merely a synonym for alcoholism — it signals an argument about diminished or absent volitional capacity, not simply habitual intoxication.
Common Confusion
Dipsomania should not be conflated with ordinary drunkenness or voluntary intoxication. Drunkenness, at common law and in most nineteenth-century American jurisdictions, was not a defense and could aggravate rather than mitigate culpability. Dipsomania was pleaded as something categorically different: a disease of the will that preceded and compelled the drinking, rendering the intoxication itself involuntary. The distinction mattered enormously in criminal trials and in proceedings over wills and contracts, where the question was not merely whether the person was drunk, but whether the compulsion to drink was itself evidence of an unsound mind. The two concepts travel together in historical sources and are easily conflated; Bouvier's explicit cross-reference to DRUNKENNESS signals the relationship while acknowledging that the legal line between them was, at the time, genuinely unsettled.
Why It Matters in Research
Dipsomania is a term with a defined lifespan. It enters American legal discourse in the latter half of the nineteenth century, peaks in the era of temperance agitation and early alienist testimony, and effectively disappears from legal usage by the mid-twentieth century as psychiatric nosology abandoned the term in favor of clinical concepts like alcohol use disorder. Researchers working in criminal law records, probate files, or asylum commitment proceedings from roughly 1860 to 1930 will encounter it with some regularity; after that window, its appearance in legal sources is largely historical or rhetorical.
The critical research trap is anachronism in both directions. Do not project modern addiction science backward onto dipsomania — the historical legal concept rested on the specific doctrine of irresistible impulse, which itself had an uneven reception across jurisdictions and was contested within insanity jurisprudence. Conversely, do not dismiss dipsomania as mere Victorian pseudoscience with no doctrinal weight; in the cases and treatises where it appears, it was doing genuine legal work, and courts took expert testimony on the condition seriously.
The Nebraska case cited in both Black's and Bouvier's — 19 Neb. 614 — is a real and useful anchor for the doctrine as it stood in American courts in the 1880s. Bishop's Criminal Law, also cited in Black's, provides the treatise framework within which dipsomania was analyzed as a species of partial insanity. Researchers tracing the irresistible impulse defense more broadly will find dipsomania cases clustered within that lineage.
Anderson's cross-reference to INTEMPERATE rather than engaging the term directly suggests that by the time of Anderson's compilation, dipsomania was already being subsumed into the broader vocabulary of intemperance and was losing its distinct doctrinal identity.
Historical Dictionary Support
Black's and Bouvier's are largely in agreement on the core definition — an irresistible impulse to indulge in intoxication — and both cite the same Nebraska authority, indicating they drew from a common case law base. Black's adds the classification as one of the minor forms of insanity and the Bishop treatise citation, providing more explicit doctrinal scaffolding. Bouvier's is more candid about the unresolved legal question, noting that how far the law will hold a party responsible for acts committed while the mind is overwhelmed by liquor so taken is an open question. That candor is itself historically informative: Bouvier's was written at a moment when the doctrine was live and contested, not yet settled.
Anderson's entry is conspicuously thin — a bare cross-reference — which may reflect either editorial compression or a judgment that the term's meaning was sufficiently captured elsewhere. It offers little independent value but confirms the term's presence in late nineteenth-century legal vocabulary.
None of the three historical sources grapples with the epistemological problem that would eventually undermine dipsomania as a legal category: if the compulsion to drink is irresistible, how does courts distinguish it from ordinary weakness of will, and who bears the burden of demonstrating the distinction? That question is absent from the historical dictionaries but is essential context for any researcher reading dipsomania cases critically.
Jurisdictional Note
Reception of dipsomania as a legal defense varied by jurisdiction and depended heavily on whether a given court accepted the irresistible impulse test as part of its insanity doctrine. Jurisdictions that limited insanity to cognitive incapacity (the M'Naghten standard alone) were generally unreceptive to dipsomania arguments, while those that recognized volitional impairment as independently exculpatory gave the concept more traction. Researchers should identify the controlling insanity standard in the jurisdiction and period under study before assessing how dipsomania evidence would have been received.