Word Study
rhea
CIDE DICTIONARY
rhea, n.
The ramie or grass-cloth plant. See Grass-cloth plant , under Grass. [1913 Webster]
rhea, n. [L., a proper name.].
Any one of three species of large South American ostrichlike birds of the genera Rhea and Pterocnemia . Called also the American ostrich . [1913 Webster]
" The common rhea, or nandou (Rhea Americana ), ranges from Brazil to Patagonia. Darwin's rhea (Pterocnemia Darwinii ), of Patagonia, is smaller, and has the legs feathered below the knee." [1913 Webster]
OXFORD DICTIONARY
rhea, n. any of several S. American flightless birds of the family Rheidae, like but smaller than an ostrich.
Etymology
mod.L genus name f. L f. Gk Rhea mother of Zeus
For further exploring for "rhea" in Webster Dictionary Online