Programming Language :
An artificial language that enables people to instruct machines. Computer commands that form procedures by which software programmers design and implement computer software programs.
From : www.atlab.com/LIMS/glossaryp-t.html
Interpreted Language :
A computer language turned into a binary form usable by a computer from its original source code by a computer each time it is run. An interpreted language is somewhat easier to work with than a compiled one, but tends to be slower.
From : teladesign.com/ma-thesis/glossary.html