Mississippi Code Title 63. Motor Vehicles and Traffic Regulations § 63-21-251

(a) “Beneficiary designation” means the designation by an owner of a motor vehicle of a beneficiary of the vehicle as provided by Section 63-21-261.

(b) “Designated beneficiary” means a person designated as a beneficiary of an owner's interest in a motor vehicle under Section 63-21-261.

(c) “Joint owner with right of survivorship” or “joint owner” means a person who owns a motor vehicle concurrently with one or more other persons with a right of survivorship.

(d) “Motor vehicle” shall have the same meaning as the term as defined in Section 63-21-5(l).