During an arteriogram, a dye is injected into an artery making the arteries visible on X-ray. Many arteries can be examined by an arteriogram, including the arterial systems of the legs, kidneys, brain, and heart.
BrowserSafeguard is a program that bills itself as being able to 'protect' a user's web browser from malicious URLs and prevents a user from visiting such web sites. While in theory this is what the software does, in doing so it has been seen to have very negative impact on the PC's overall performance and security. BrowserSafeguard installs a local proxy server that all browsers must utilize in order to connect to the internet. Using an embedded Fiddler engine (web debugging proxy which logs all HTTP) it traps all traffic going through the Internet from the browser and analyzes it.
A Web Browser is a program that you use to open websites with--effectively browsing the web. Internet Explorer and Mozilla Firefox are two such examples (Mac's Opera is another). So it means it simply has a program that can (could) access the web--if given the ability to (ie: internet connection).