[dis-rith
-mee-uh] 
| a disturbance of rhythm, as of speech or of brain waves recorded by an electroencephalograph. |
| dys·rhyth·mi·a (dĭs-rĭth'mē-ə) n. An abnormality in an otherwise normal rhythmic pattern, as of brain waves being recorded by an electroencephalograph. [New Latin : dys- + Latin rhythmus, rhythm; see rhythm.] |
dysrhythmia dys·rhyth·mi·a (dĭs-rĭ&phonth;'mē-ə)
n.
An abnormality in an otherwise normal rhythmic pattern.