apomixis Syllabification: (ap·o·mix·is)Pronunciation: /ˌapəˈmiksis/Definition of apomixis noun Botany asexual reproduction in plants, in particular agamospermy. Often contrasted with amphimixis.Derivatives apomicticPronunciation: /-ˈmiktik/ adjective Origin: early 20th century: from apo- + Greek mixis 'mingling'apomixis in other Oxford dictionaries Definition of apomixis in the British & World English dictionary