Mo. Rev. Stat. § 578.170: Definitions.

Definitions. As used in sections 578.170 to 578.188, the following terms mean:

(1) "Animal," every living vertebrate except a human being;

(2) "Baiting," to attack, provoke, or harass an animal with one or more animals for the purpose of training an animal for, or to cause an animal to engage in, fights with other animals for the purpose of amusement, entertainment, wagering or gain;

(3) "Bear wrestling," a contest of fighting or physical altercation between one or more persons and a bear for the purpose of amusement, entertainment, wagering or gain;

(4) "Person," any individual, partnership, firm, joint stock company, corporation, association, other business unit, society, trust, estate or other legal entity, or any public or private institution.