| dipteronia | (n) small genus of large deciduous shrubs having large clusters of winged seeds that turn red as they mature; central and southern China, Syn. genus Dipteronia |
| dipterous insect | (n) insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing, Syn. dipteran, dipteron, two-winged insects |