zygomorphic Syllabification: (zy·go·mor·phic)Pronunciation: /ˌzīgəˈmôrfik/Definition of zygomorphic adjective Botany (of a flower) having only one plane of symmetry, as in a pea or snapdragon; bilaterally symmetrical. Compare with actinomorphic.Derivatives zygomorphyPronunciation: /ˈzīgəˌmôrfē/ noun zygomorphic in other Oxford dictionaries Definition of zygomorphic in the British & World English dictionary