You could write "implicit derivative component", but "embedded" is more common, and is the language used in the IAS.

"An embedded derivative can modify the cash flows of the host contract because the derivative can be related to an exchange rate, commodity price or some other variable which frequently changes. For example, a Canadian company might enter into a sales contract with a Chinese company, creating a host contract. If the contract is denominated in a foreign currency, such as the U.S. dollar, an embedded foreign currency derivative is created."