Pronunciation: (un'shē-ul, -shul), [key]
designating, written in, or pertaining to a form of majuscule writing having a curved or rounded shape and used chiefly in Greek and Latin manuscripts from about the 3rd to the 9th centurya.d.
1. an uncial letter.
2. uncial writing.
3. a manuscript written in uncials.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.