a. written in upper case; capital n. (alternative spelling of upper case English)
adj. relating to capital letters which were kept in the top half of a compositor's type case; "uppercase letters; X and Y and Z etc" [ant: lowercase]
Usage examples of "uppercase".
Looming fifty-five feet tall, the antiballistic missile was painted white with accurate black tail and fin markings and a vertical stack of uppercase letters spelling US ARMY.
Parker said, squinting as he checked out an uppercase K, which can be' written a number of different ways and therefore is very useful in handwriting analysis.