cytogeneticsPronunciation: /ˌsʌɪtəʊdʒəˈnɛtɪks/Definition of cytogenetics noun [treated as singular] Biology the study of inheritance in relation to the structure and function of chromosomes. Derivatives cytogenetic adjective cytogenetical adjective cytogenetically adverb cytogeneticistPronunciation: /-sɪst/ noun cytogenetics in other Oxford dictionaries Definition of cytogenetics in the US English dictionary