Definition

Noun: 1. A large, flightless bird: Rhea americana is the larger of two species of rhea, a tall, fast-running, flightless bird native to South America. It is similar to an ostrich but has three toes instead of two. Its range extends from Brazil to Patagonia. 2. A specific biological species: The term refers specifically to the Greater Rhea, a distinct species within the genus Rhea and the family Rheidae.

Usage Examples

• Noun:
  • The Rhea americana is often seen grazing on grasslands alongside deer and cattle.
  • Conservation efforts are crucial for protecting the habitat of Rhea americana.
  • Unlike the ostrich, Rhea americana has three toes and lacks a bladder.

Advanced Usage

• In scientific and zoological contexts: The term is used precisely to distinguish this species from its smaller relative, the Darwin's Rhea ().
  • The study compared the foraging behavior of Rhea americana to that of other ratites.

Variants and Related Words

• Rhea (n): The common name for the genus and family, often used to refer to these birds generally.
  • Rheas are the largest birds in the Americas.
• Greater Rhea (n): The most common English name for .
• Ratite (n): The biological group of large, flightless birds that includes rheas, ostriches, emus, and kiwis.

Synonyms

• Greater Rhea (n): The standard common name.
• American rhea (n): A less frequent synonym emphasizing its geographic location.

Related Terms (Not Phrasal Verbs or Idioms)

• Flightless bird (n): A descriptive term for birds like the that cannot fly.
• Three-toed (adj): A key physical characteristic distinguishing rheas from ostriches.

Noun

1. larger of two tall fast-running flightless birds similar to ostriches but three-toed; found from Brazil to Patagonia