| ANIRIDIA | • aniridia n. A rare congenital condition characterized by the underdevelopment of the iris of the eye. • ANIRIDIA n. a congenital condition in which the eye is incompletely formed. |
| ANTHODIA | • anthodia n. Plural of anthodium. • ANTHODIUM n. the flower head of certain plants. |
| COCCIDIA | • coccidia n. Plural of coccidium. • Coccidia prop.n. A taxonomic subclass within the class Conoidasida – various parasitic protozoa. • Coccidia prop.n. A taxonomic subclass within the class Coccidiomorphea – various parasitic chromists. |
| CORMIDIA | • cormidia n. Plural of cormidium. • CORMIDIUM n. (Latin) the assemblage of individuals dangling in clusters from the main stem of pelagic siphonophores. |
| CTENIDIA | • ctenidia n. Plural of ctenidium. • CTENIDIUM n. (Greek) a comblike anatomical structure. |
| CYMBIDIA | • CYMBIDIUM n. a kind of tropical orchid. |
| EPICEDIA | • epicedia n. Plural of epicede. • EPICEDIUM n. (Latin) a funeral ode, also EPICEDE. |
| GAMMADIA | • gammadia n. Plural of gammadion. • GAMMADION n. (Greek) a Greek ornamental design, also GAMMATION. |
| GERARDIA | • gerardia n. (Botany) Any of the genus Gerardia of flowering plants. • GERARDIA n. any of a genus of often root-parasitic herbs of the snapdragon family. |
| MAZAEDIA | • mazaedia n. Plural of mazaedium. • MAZAEDIUM n. a spore-producing organ of certain lichens. |
| PALLADIA | • palladia n. Plural of palladium. • PALLADIUM n. a metallic element resembling platinum. |
| PRESIDIA | • presidia n. Plural of presidium. • PRESIDIUM n. (Latin) a standing committee in the former Soviet Union, also PRAESIDIUM. |
| PYCNIDIA | • pycnidia n. Plural of pycnidium. • PYCNIDIUM n. a spore-bearing organ in some fungi. |
| SPORIDIA | • sporidia n. Plural of sporidium. • SPORIDIUM n. a secondary spore, or a filament produced from a spore, in certain kinds of minute fungi. |
| SYMPODIA | • sympodia n. Plural of sympodium. • SYMPODIUM n. a stem involved in sympodial growth. |
| TIGRIDIA | • Tigridia prop.n. A taxonomic genus within the family Iridaceae – various bulbous or cormous flowering plants. • TIGRIDIA n. a tropical American plant with colourful flowers. |
| TRIPUDIA | • tripudia n. Plural of tripudium. • TRIPUDIUM n. (Latin) an ancient Roman religious dance in triple time. |