n, pl  -gies  1  :  the minute cytological characteristics of the cell nucleus esp. with regard to the chromosomes of a single cell or of the cells of an organism or group of organisms  2  :  a branch of cytology concerned with the karyology of cell nuclei kary*o*log*i*cal also  kary*o*log*ic  adj kary*o*log*i*cal*ly adv 
 
 
 
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