Arethusa has 3 different meanings across 2 categories:
Noun · Proper Noun
any of several bog orchids of the genus Arethusa having 1 or 2 showy flowers
A bog orchid, Arethusa bulbosa, sole species of the genus Arethusa, having a magenta flower; the dragon's mouth.
Arethusa; a nereid nymph, who became a fountain.