| allionia | (n) small genus of chiefly American herbs, Syn. genus Allionia |
| ionia | (n) region of western Asia Minor colonized by ancient Greeks |
| ionian | (n) a member of one of four linguistic divisions of the prehistoric Greeks |
| ionian | (n) the ancient Greek inhabitants of Attica and related regions in Ionia |
| ionian | (adj) of or pertaining to the ancient Ionians who lived in Attica and related territories, to their Ionic dialect of Greek, or to their culture |
| ionian sea | (n) an arm of the Mediterranean Sea between western Greece and southern Italy |
| ionic order | (n) the second Greek order; the capital is decorated with spiral scrolls, Syn. Ionian order |
| nyctaginaceae | (n) a family of flowering plants of the order Caryophyllales, Syn. family Allioniaceae, Allioniaceae, family Nyctaginaceae, four-o'clock family |
| trailing four o'clock | (n) trailing plant having crowded clusters of 3 brilliant deep pink flowers resembling a single flower blooming near the ground; found in dry gravelly or sandy soil; southwestern United States and Mexico, Syn. trailing windmills, Allionia incarnata |