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un·cial also Un·cial (ŭnshəl, -sē-əl)
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adj.
Of or relating to a style of writing characterized by somewhat rounded capital letters and found especially in Greek and Latin manuscripts of the fourth to the eighth century AD.
n.
1. A style of writing characterized by somewhat rounded capital letters. It provided the model from which most of the capital letters in the modern Latin alphabet are derived.
2. A capital letter written in this style.

[From Late Latin ūnciālēs (litterae), inch-high (letters), uncials, pl. of Latin ūnciālis, inch-high, from ūncia, a twelfth part, ounce, inch; see oi-no- in the Appendix of Indo-European roots.]
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uncial

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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