"Does anyone know where I can get definitions of these symbols, whether it be a website or training manual of some sort. Any suggestions would be greatly appreciated.".
Symbols and definitions:
http://www.engineersedge.com/gdt.htm
Online fundamentals training:
http://www.pdhstorm.com/ - look under "Fundamentals of GD&T, ASME Y14.5 - 2009"
Comprehensive book you should get:
http://www.engineersedge.com/catalog...roducts_id/124