adj. Describes a word that includes one or more uppercase letters within the body of the word.
Compound words like WebAddresses that include uppercase letters to separate words are also known as inner-capped or inter-capped words. This is also known as BiCapitalization and the words are known as InterCaps.
I used to think this trend started with companies that affected computer lingo — CompuServe, DigiCash, WordPerfect, HotJava — but lexicographer Richard Weiner, who I suspect coined inner-capped on the analogy of the mafia's knee-capping, reminds me of the 1959 TelePrompTer.