What is the difference between liquid makeup and liquid foundation?

also difference between powder makeup and the loose/pressed powder you use after applying foundation?

liquid makeup: http://www.walgreens0o0com/store/catalog/Foundation/Healthy-Skin-Liquid-Makeup-SPF-20/ID=prod5430749&navCount=1&navAction=push-product?V=G&ec=frgl_517654&ci_src=http://answers.yahoo.com/question/14110944&ci_sku=sku5429613

liquid foundation: http://www.sears0o0com/shc/s/p_10153_12605_013A1659000P?vName=Beauty&cName=Face&sName=Foundation%20&%20Concealer=&psid=FROOGLE01&sid=IAx20090815x000001&aff=Y

powder makeup: http://www.clinique0o0com/product/CATEGORY4906/PROD13089/Makeup/Powders/index.tmpl

powder applied after foundation: http://www.sephora0o0com/browse/product.jhtml?id=P125408&categoryId=S10805&shouldPaginate=true