from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The study of seals and signets.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The study of seals, especially those attached to documents.
from the GNU version of the Collaborative International Dictionary of English
- n. The science of seals, their history, age, distinctions, etc., esp. as verifying the age and genuiness of documents.
from The Century Dictionary and Cyclopedia
- n. The study of seals and the distinctions among them; the archæology of seals.
The so-called auxiliary sciences of history, i.e. palæography, diplomatics, epigraphy, numismatics, sigillography, or sphragistics, furnish practical rules that generally suffice to determine approximately the age of a manuscript.
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