I need to know what the technical term is for the thickness of a saw blade, does anybody know? I would very much appreciate it.

This link may be a use to you:

G5600 Circular Sawmill Alignment and Maintenance, MU Extension (http://muextension.missouri.edu/explore/agguides/forestry/g05600.htm)

I need to know what the technical term is for the thickness of a saw blade, does anybody know? I would very much appreciate it.
That would be the kerf or widest part of the tooth cut. A carbide tooth kerf thickness varies for finess of cut and minimal groove. Good radial skilsaw blades have carbide tooth 1/16" thick planing kerfs. Nm

The blade may have a different thickness than teeth.
"blade thickness"?

This is a very generic term used by many different people for many different things.

In our business when we tell someone they need to take the thickness of a sawblade off the wood it is usually just enough to get the two board not to overlap. To us that would be about an 1/8".