[ar-uh-thoo-zuh] 
| 1. | Also called dragon's mouth, swamp pink. an orchid, Arethusa bulbosa, of eastern North America, having a solitary pink flower with a blotched, fringed lip: now rare. |
| 2. | (initial capital letter ) Classical Mythology. a nymph who was changed into a spring to save her when she was being pursued by the river god Alpheus. |