Search Result for "heteroploid": 
Wordnet 3.0

NOUN (1)

1. (genetics) an organism or cell having a chromosome number that is not an even multiple of the haploid chromosome number for that species; 



WordNet (r) 3.0 (2006):

heteroploid
    n 1: (genetics) an organism or cell having a chromosome number
         that is not an even multiple of the haploid chromosome
         number for that species