/kee'moh pal'i dek"teuh mee, kem'oh-/ , n. , pl. chemopallidectomies . Surg.
an operation for treating Parkinson's disease and certain other diseases characterized by muscular rigidity, consisting of destroying a specific part of the corpus striatum by injecting it with a chemical, usually alcohol.
[ CHEMO- + NL pallid ( um ) a muscle (n. use of neut. of L pallidus pale) + -ECTOMY ]