uncial

n. upper-case letters of a particular ancient rounded style; writing in the uncial style

adj. of or pertaining to upper case letters of a particular rounded style which was prevalent in Greek and Latin manuscripts from about 400 A.D. to 800 A.D., ancient writing style from which capital letters were derived

Uncial is a majuscule script commonly used from the 3rd to 8th centuries AD by Latin and Greek scribes. From the 8th century to the 13th century the script was more often used as a display script in headings and titles.
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Noun
1. a style of orthography characterized by somewhat rounded capital letters; found especially in Greek and Latin manuscripts of the 4th to 8th centuries
(hypernym) script
Adjective
1. relating to or written in majuscule letters (which resemble modern capitals); "uncial letters"

adj. uncial, of or pertaining to upper case letters of a particular rounded style which was prevalent in Greek and Latin manuscripts from about 400 A.D. to 800 A.D., ancient writing style from which capital letters were derived

(n.)
An uncial letter.
  

(a.)
Of, pertaining to, or designating, a certain style of letters used in ancient manuscripts, esp. in Greek and Latin manuscripts. The letters are somewhat rounded, and the upstrokes and downstrokes usually have a slight inclination. These letters were used as early as the 1st century b. c., and were seldom used after the 10th century a. d., being superseded by the cursive style.