Dyspraxia of speech is also known as verbal dyspraxia or apraxia.
It is a speech disorder in which a person has trouble pronouncing words correctly and consistently, e.g. one day a person may be able to say “television” easily but another day may struggle and not be able to say it at all. The difficulty is not due to weakness or paralysis of the speech muscles (the muscles of the face, tongue, and lips). The severity of speech dyspraxia can range from mild to severe.