Definition
The act of giving birth to a child. Parturition denotes the moment or process by which a child is delivered from the mother's body, marking the legal threshold between an unborn child (partus) and a living person capable of holding legal rights and being the subject of legal duties.
The term functions as a technical marker in law, not a substantive cause of action in itself, but as a boundary concept that triggers or resolves questions of inheritance, personhood, citizenship, legitimacy, survivorship, and criminal liability.
Common Language
Modern common usage (Wiktionary): The act or process of a mother giving birth.
Historical common usage (Webster's 1913): The act of bringing forth, or being delivered of, young; the act of giving birth; delivery; childbirth. Also, that which is brought forth; a birth. [Obs.]
The gap between common and legal meaning is narrow but precise. In ordinary English, parturition describes a biological process. In law, it functions as a bright-line event — the legal moment at which a new person comes into existence for purposes of rights, succession, and protection. The process matters less than the legal consequences that attach to its completion.
Common Confusion
Parturition and birth are often used interchangeably in legal sources, but the distinction can matter. Birth generally refers to the accomplished fact — a child born alive. Parturition emphasizes the act or process of delivery. In older sources, courts and treatises sometimes used parturition when addressing questions of whether a child was born alive at all, as opposed to stillborn, making the term more procedurally precise than the colloquial birth. Partus, the Latin companion term, refers specifically to the offspring at the moment before or immediately after birth and appears in maxims governing the status of children.
Why It Matters in Research
Parturition is a term of art that researchers will encounter chiefly in three bodies of legal material: inheritance and succession disputes, criminal law (particularly regarding infanticide, abortion, and the born-alive rule), and legitimacy proceedings.
In inheritance research, the critical question is often whether a child was born alive — that is, whether parturition produced a living person capable of inheriting, even briefly. Historical courts required evidence that the child had a separate existence from the mother, breathed, or cried. Researchers examining nineteenth-century probate and chancery records will find parturition appearing in this survivorship context.
In criminal law, parturition historically marked the boundary of the born-alive rule: an act causing the death of a child in utero was not homicide unless the child was first born alive. This made parturition the legal trigger for criminal liability in infanticide and related prosecutions. The term appears frequently in treatises and indictments from this period.
In legitimacy law, the date and circumstances of parturition mattered for computing the period of gestation and thus determining whether a child was born within or outside of lawful wedlock.
Researchers should be aware that modern legal materials rarely use parturition in favor of birth or delivery, so historical searches using only contemporary vocabulary may miss relevant sources. Conversely, searching older indices and digests under parturition will surface material that birth alone will not retrieve.
The related term partus appears in several canonical maxims — most importantly partus sequitur ventrem (the offspring follows the condition of the mother) — which governed the status of enslaved persons' children in American law. Researchers working in that body of law must track parturition and partus together.
Historical Dictionary Support
All four source dictionaries converge on a single, brief definition: parturition is the act of giving birth to a child. Black's (both editions), Rapalje & Lawrence, and Bouvier are in complete agreement and offer no significant divergence.
Bouvier adds the most useful cross-referential structure, directing readers to both BIRTH and PARTUS and explicitly noting the maxim partus sequitur, etc. — an important signal that parturition does not stand alone in legal usage but anchors a cluster of concepts about the legal status of offspring. Rapalje & Lawrence situates parturition within a sequence of similarly brief entries on PARTUS and related terms, reflecting the dictionary's practice of grouping Latin-derived terms.
What the historical dictionaries do not address is the evidentiary and procedural significance of parturition — how courts actually determined whether it had occurred, what evidence sufficed, and how disputes were resolved. For that material, researchers must move to treatises, case reporters, and medical jurisprudence texts of the nineteenth century.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Birth (Legal Definition and Consequences); Born-Alive Rule; Legitimacy and Bastardy; Partus Sequitur Ventrem.