Definition of oligogenic in English:
oligogenic
Pronunciation /ˌɒlɪɡə(ʊ)ˈdʒɛnɪk/
adjective
Genetics
Of a heritable characteristic: controlled by a few genes.
Origin
1940s; earliest use found in Kenneth Mather (1911–1990), geneticist. From oligo- + -genic, after polygenic.