polyhybrid
/ˌpɒlɪˈhʌɪbrɪd/Genetics
noun
A hybrid that is heterozygous at several genetic loci.
adjective
Of, relating to, or characteristic of a polyhybrid, or a cross resulting in a polyhybrid.
Origin
Early 20th century; earliest use found in Science. From poly- + hybrid. With use as noun compare French polyhybride.