camel case

American  

Or camelcase,

noun

1. the convention of writing compound words or phrases with no spaces and an initial lowercase or uppercase letter, with each remaining word element beginning with an uppercase letter.

   iPod and WikiAnswers are both spelled in camel case.

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Etymology

Origin of camel case

In reference to the capital letter creating a hump in the series of letters

Example Sentences

A less obvious difference is the dropping of the camel case, so from here on out it’s going to be Mastercard or, as above, mastercard, and not MasterCard.

From The Verge