Duhaime's Law Dictionary Seal Definition: A waxed impression proving authenticity of a document. Related Terms: Chirograph In the common law, the seal was a waxed symbol impressed upon a document to indicate its owner's assent to a document.As Am. Jur. 2d points out:"By statute ... in most states in which the seal retains significance, a seal also may take the form of a ... word, scrawl or other sign."In other words, signatures have replaced the ancient seal.Am. Jur. 2d continues:"[I]n early times, documents were commonly authenticated by the use of a seal due to widespread illiteracy." Categories & Topics: Duhaime's Contract Law Dictionary Always looking up definitions? Save time with our search provider (modern browsers only) If you find an error or omission in Duhaime's Law Dictionary, or if you have suggestion for a legal term, we'd love to hear from you!