-somic
adjective combining form: having or being a chromosome complement of which one or more but not all members exhibit (such) a degree of reduplication of chromosomes or genomes
    monosomic

-so·mic
\|sōmik, -mēk\ adjective combining form
Etymology: International Scientific Vocabulary -some (III) + -ic
: having or being a body of chromosomes of which one or more but not all members exhibit (such) a degree of ploidy
 < hexasomic >
 < monosomic >