[roo-bee-throh-tid] 
| a small hummingbird, Archilochus colubris, the only hummingbird of eastern North America, having metallic-green upper plumage and a bright red throat in the male. |
| ru·by-throat·ed hummingbird (rōō'bē-thrō'tĭd) n. A small bird (Archilochus colubris) of eastern North America, having metallic-green upper plumage and, in the male, a brilliant red throat. |