1. Slow, or labored, speech resulting from a central nervous system disturbance; such as, in Syndenham's chorea (a disorder of childhood with degenerative nervous disorders characterized by spasmodic movements of the body and limbs) or other extrapyramidal motor disorders (complicated system of descending fiber tracts arising in the cortex and subcortical motor centers of the brain).
2. The slow speech observed in certain depressive illnesses.