from
Jargon File (4.4.4, 14 Aug 2003)
camelCase
A variable in a programming language is sait to be camelCased when all
words but the first are capitalized. This practice contrasts with the
C tradition of either running syllables together or marking syllable
breaks with underscores; thus, where a C programmer would write
thisverylongname or this_very_long_name, the camelCased version would
be thisVeryLongName. This practice is common in certain language
communities (formerly Pascal; today Java and Visual Basic) and tends
to be associated with object-oriented programming.
Compare {BiCapitalization}; but where that practice is primarily
associated with marketing, camelCasing is not aimed at impressing
anybody, and hackers consider it respectable.