Mo. Rev. Stat. § 632.550: Definitions.

As used in sections 632.550 to 632.557, the following terms mean:

(1) "Board" , the governing board established in section 632.555;

(2) "Child" , a person under the age of eighteen years;

(3) "Demonstration project" , the project established in section 632.553;

(4) "Department" , the department of mental health;

(5) "Severely emotionally disturbed child" , a child who exhibits substantial impairment in his ability to function at a developmentally appropriate level due to the presence of a serious psychiatric disorder.