rhea (Noun) — Smaller of two tall fast-running flightless birds similar to ostriches but three-toed; found from Peru to Strait of Magellan.
rhea (Noun) — Larger of two tall fast-running flightless birds similar to ostriches but three-toed; found from Brazil to Patagonia.
rhea (Noun) — Fertility goddess in ancient Greek mythology; wife of Cronus and mother of Zeus; identified with Roman Ops and Cybele of ancient Asia Minor.