In English, we generally say that we're "attending a meeting." Other examples of verbs + a meeting include;
- I will be participating in the meeting.
- I will be chairing the meeting (meaning I will be leading the meeting).
- I will be going to the meeting.
- I don't want to go to the meeting.
- I don't want to attend the meeting.
In these examples, "going to a meeting" and "attending a meeting" mean the same thing.
"Visiting a meeting" gives a sense that you'll go to the meeting but then leave. It's not used in spoken or written English. Some example sentences with the word "visiting" are below:
- I will be visiting my parents this weekend.
- I will make sure to visit that town.
- Please visit me when you are in London.
- She paid me a visit in the afternoon.
- I'll visit your office during lunch.
So from these examples, the word "visit" implies that it's temporary. So if someone did say they'll visit a meeting (though it's rare), one could assume that they will attend for a short period (not the full length of the meeting).