defect of speech

disorder, upset - a physical condition in which there is a disturbance of normal functioning; "the doctor prescribed some medicine for the disorder"; "everyone gets stomach upsets from time to time"

anarthria - partial or total loss of articulate speech resulting from lesions of the central nervous system

aphonia, voicelessness - a disorder of the vocal organs that results in the loss of voice

cataphasia - a speech disorder in which the same word is repeated several times in succession

dysarthria - impaired articulatory ability resulting from defects in the peripheral motor nerves or in the speech musculature

dyslogia - impaired ability to express ideas verbally; usually resulting from difficulties of reasoning (as in feeblemindedness or certain psychoses)

dysphonia - speech disorder attributable to a disorder of phonation

lallation - defective articulation of the `l' phoneme or the phoneme `r' is pronounced as `l'

lambdacism - speech defect involving excessive use or unusual pronunciation of the phoneme `l'

lisp - a speech defect that involves pronouncing `s' like voiceless `th' and `z' like voiced `th'

stammer, stutter - a speech disorder involving hesitations and involuntary repetitions of certain sounds