Would someone please explain medial and internal vowels to me?

Hi PD....You probably already google it and got this.

Here's medial. I have to go back and look for internal. I was an Elem. teacher and never heard vowels called that.

http://www.yourdictionary.com/medial

Edit...Aaaahhhhgggg!!! I hate it when the definition is the same word! The only thing I could find was having to do with Latin thematic...whatever that means. Hopefully an English Major will answer you. It's probably like computer language...a secret society only has that information. Sorry.