### Question
How is the term security interest defined?


### Answer
The term **security interest** is defined in *11 U.S.C. § 1168* as the following:

> a purchase-money equipment security interest

#### Citation:
  - *11 U.S.C. § 1168*
  - Heading: **CHAPTER 11-REORGANIZATION > SUBCHAPTER IV-RAILROAD REORGANIZATION**

