[ dɪ'sɪmɪleɪt ]
■ verb Linguistics change (a sound in a word) to another when the word originally had identical sounds near each other (e.g. in taper , which derives from papyrus , the p is ~d to t ).
Derivatives
dissimilation noun
dissimilatory adjective
Origin
C19: from dis- + L. similis 'like, similar', on the pattern of assimilate .