Speech or language impairment refers to a communication disorder, such as stuttering, impaired articulation, language or voice impairment that adversely affects a child’s educational performance. A speech or language impairment may be congenital or acquired. It refers to impairments in the areas of articulation, fluency, voice or language. Individuals may demonstrate one or any combination of speech or language impairments. A speech or language impairment may be a primary disability or it may be secondary to other disabilities. [34 C.F.R. § 300.8(c)(11)]