definiens: means medical applications . CONFIDENTIAL TREATMENT means the five - year period commencing on May 1,2004 and ending on April 30, 2009 ; provided however, if the date that [COMPANY] shall have executed and delivered this Agreement to WGT is after May 1, 2004, then ( a ) the First Contract Period shall commence on the first day of the month in which such execution and delivery occurs ( n Commencement Daten ) and continue for five years thereafter ; ( b ) the Second Contract Period shall commence on the fifth anniversary ofthe Commencement Date and continue for five years thereafter ; ( c ) the term nContract Year " shall be changed so as to mean a period beginning each calendar year on the Commencement Date ( and each year thereafter on the anniversary thereof ) and ending 12 months later ; and ( d ) the Third Contract Period, if any, shall commence on the tenth anniversary ofthe Commencement Date