What's the dot in an exclamation point called?

[gonzaga1751]

its a point of exclamation how can u guys not get that?

 

[sdf]

Isn't it just a structural part of the exclamation point? Just like the line in the H.

Or it could be the point in time before the excitement comes, brought by the long line.

 

[TheLonelyPhoenix]

Punctuation-Who-Must-Not-Be-Named.