Word Search

I was a member of the Quiz Bowl team in college. One time we attended a tournament that offered a registration fee discount for any team that could answer the following trivia question: "What word denotes a word such as 'WordPerfect' that has a capital letter inside of it, but no space before the capital?" (A more modern example would be iPod.) We never came up with the answer, so we didn't get the discount. And no one ever told us the answer, either, so I still wonder about it from time to time. Does anyone out there know the answer?