No, not necessarily.

Mark Simonson of Mark Simonson Studio tells us why, and gives an example.

Update (2005-06-21): Eli comments. I should explain — I know (and knew) that there is more to an italic-style font than slanting.* As regards slanting, the title of my post was poorly worded. Perhaps it should have been "And you thought 'italic font' just meant 'slanted' ... " or something along those lines. For this, Mr. Evans, I offer my humble apologies. Now: When are you going to start blogging again?

(Don't worry, folks, Eli and I are just having fun.)

* This is especially dependent on context as the term 'Italic' could indicate MSS of the "Old Latin" variety if the context were that of textual criticism or early versions of the NT.