The phrase "introductory rate" refers to a special initial price or interest rate that is offered for a limited time when you subscribe to a service or use a product. Full definition
This credit card has a low interest rate of 19.99 %, and for the first 6 billing cycles, you receive a low introductory rate of just 1.99 %. (creditwalk.ca)
Give in to temptation with low introductory rates for up to four guests. (parrishkauai.com)
Credit cards with 0 percent introductory rates for balance transfers are hard to pass up, but beware of fees for transferring balances, usually a few percentage points of the transferred amount. (money-rates.com)