Definition
A Latin term of Roman law origin meaning delineation, designation, or description. In legal contexts, *descriptio* refers to the act or result of identifying a person, place, or thing by setting out its distinguishing characteristics with sufficient particularity to distinguish it from all others. The term appears most frequently in two overlapping senses:
1. *Descriptio personae* — the description of a person, used to identify a party to a legal instrument, contract, or proceeding. The description is intended to designate *who* is meant, not to alter or limit the legal relationship.
2. *Descriptio rei* — the description of a thing, particularly land or property, used in deeds, grants, and conveyances to identify the subject matter of the transaction with the precision required for legal effect.
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Common Confusion
*Descriptio* is sometimes treated as interchangeable with *definitio* (definition) in translated Roman law texts, but the terms are distinct. *Definitio* sets the boundaries of a legal concept or rule; *descriptio* identifies a specific person or thing within a transaction. Researchers encountering either term in a civilian or mixed-law context should not assume equivalence. Additionally, *descriptio personae* must be distinguished from a condition or limitation: a description that merely identifies who is meant does not restrict the party's legal capacity or rights, even if the description is technically inaccurate in some detail.
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Why It Matters in Research
The practical weight of *descriptio* in Anglo-American legal research lies primarily in the doctrine of *descriptio personae*, which courts have long applied to resolve disputes over whether a misdescription in a contract, deed, or will defeats the instrument or can be treated as mere surplusage. The rule — that a false description does not void a grant if the grantee can be identified with certainty — appears in equity and property cases dating back several centuries and remains operative in modern deed construction disputes.
Researchers working in property law should note that *descriptio* appears in older conveyancing treatises and court opinions without translation, particularly in decisions touching on boundary disputes, metes-and-bounds descriptions, and patent grants. The term drops out of common use in American case law by the mid-nineteenth century, replaced by the plain-English phrase "description of the person" or "description of the property," but the underlying doctrine persists under those labels.
In civil law jurisdictions and comparative law scholarship, *descriptio* retains its Latin form more consistently, especially in discussions of Roman law obligations and party identification in contracts. Researchers moving between common law and civil law sources should watch for divergent usage: in civilian writing, *descriptio* often carries a broader methodological sense (describing the content or scope of a legal rule), whereas common law sources confine it almost entirely to the transactional identification function.
One indexing trap: older American digests frequently treat *descriptio personae* cases under headings like "Parties — Misnomer," "Deeds — Description," or "Wills — Identification of Beneficiary" without using the Latin term at all. A researcher who searches only for the Latin form will miss the bulk of the relevant material.
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Historical Dictionary Support
Anderson's Dictionary of Law defines *descriptio* concisely as "[d]elineation: designation, description," directing the reader to compare *demon-* (the entry is truncated in available source material, but the cross-reference almost certainly points to *demonstratio*, the related concept of demonstration or pointing out). This brief entry is characteristic of Anderson's treatment of Latin civilians' terms: functional rather than analytical.
The truncated cross-reference to *demon-* is significant. *Demonstratio* and *descriptio* are closely related in Roman law and in early modern legal writing. *Demonstratio* typically refers to identifying something by pointing it out or singling it out by circumstance, while *descriptio* identifies by enumerated characteristics. The distinction matters in legacy and conveyance contexts, where courts determined whether a failed identification was a *demonstratio* (correctable by extrinsic evidence) or an essential term (fatal to the instrument). Anderson's cross-reference signals that researchers should treat these terms as a pair rather than in isolation.
Historical dictionaries generally give *descriptio* sparse treatment compared to *demonstratio*, reflecting the fact that Anglo-American courts more frequently litigated the *demonstratio* question. Bouvier's Law Dictionary, a natural complement to Anderson in this period, develops the *descriptio personae* doctrine more fully under "Description" and "Person." Researchers using Anderson alone will find the entry insufficient for doctrinal work and should supplement accordingly.
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Jurisdictional Note
The *descriptio personae* doctrine is recognized across common law jurisdictions, but its application to property descriptions varies. American courts in states with metes-and-bounds recording traditions have developed more elaborate rules about when a defective land description is curable than courts in states with rectangular survey systems, where parcel identification is more standardized.
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