Naiad n. : A water nymph; one of the lower female divinities, fabled to preside over some body of fresh water, as a lake, river, brook, or fountain.

Naiad n. : Any species of a tribe (Naiades) of freshwater bivalves, including Unio, Anodonta, and numerous allied genera; a river mussel.

Naiad n. : One of a group of butterflies. See Nymph.

Naiad n. : Any plant of the order Naiadaceae, such as eelgrass, pondweed, etc.

Example:
Are there any publishers of Gay Men's fiction like Naiad Press (which is for Lesbians)?

Taxonomy
Naiads, Fountain of the Naiads, free encyclopedia, rivers, water nymph, Greek, fountains, wells, marshes, lakes, ancient springs, still waters, cults, Walter Burkert, Zeus, reading, king, Naiades.

Defination from the web:
naiad of the spring. ... Theocritus's story of naiad jealousy was that of a shepherd, Daphnis, who was the lover of Nomia; Daphnis had on several occasions been ...