Yep, "symbol" is a poor choice for the definition.
[link|http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci211643,00.html|Baudy bit.] :)
Baud was the prevalent measure for data transmission speed until replaced by a more accurate term, bps (bits per second). One baud is one electronic state change per second. Since a single state change can involve more than a single bit of data, the bps unit of measurement has replaced it as a better expression of data transmission speed.
Alex
A government which robs Peter to pay Paul can always depend on the support of Paul. -- George Bernard Shaw