Rubythroat

Part of speech: noun

Definitions

1. A species of hummingbird distinguished by its vibrant ruby throat, commonly inhabiting regions of eastern North America and attracting nectar from flowering plants
2. This type of small bird is often recognized by the bright ruby coloration on its throat, thriving in environments with abundant floral resources
3. A type of hummingbird known for its striking ruby-colored throat feathers, which resides predominantly in eastern North America and feeds on nectar from various flowers

Etymology: The ruby-throat is a hummingbird, and its name is about as literal as bird names get: "ruby" for the gem-red gorget that flashes on the male's throat, and "throat" for the body part where that colour sits. The compound is transparent in its parts, and the feathers do the rest. In hummingbirds the throat patch is an iridescent gorget, and it looks dark or black until the light hits it at the right angle, when it suddenly glows red. That shift is why the bird is named for a gemstone rather than a plain colour. The word "ruby" itself comes from Old French "rubi," which traces back to Latin "rubeus," meaning red. English borrowed the gemstone sense long before anyone applied it to a bird, so the name joins a simple word for a stone with a simple word for a body part, and the combination became a common name for the species.