#speech_disorder__speech_defect  a disorder of oral speech
  supertype:  #disorder.state__upset  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"
  subtype:  #anarthria  partial or total loss of articulate speech resulting from lesions of the central nervous system
  subtype:  #aphonia__voicelessnes  a disorder of the vocal organs that results in the loss of voice
  subtype:  #cataphasia  a speech disorder in which the same word is repeated several times in succession
  subtype:  #dysarthria  impaired articulatory ability resulting from defects in the peripheral motor nerves or in the speech musculature
  subtype:  #dyslogia  impaired ability to express ideas verbally; usually resulting from difficulties of reasoning (as in feeble-mindedness or certain psychoses)
  subtype:  #dysphonia  speech disorder attributable to a disorder of phonation
  subtype:  #lallation  speech defect in which the phoneme `r' is pronounced as `l'
  subtype:  #lambdacism  speech defect involving excessive use or unusual pronunciation of the phoneme `l'
  subtype:  #lisp  a speech defect that involves pronouncing s like voiceless th and z like voiced th
  subtype:  #stammer__stutter  a speech disorder involving hesitations and involuntary repetitions of certain sounds

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