naiad

1 a mythical goddess represented as a young girl and said to live outdoors in Greek mythology, naiads supposedly drowned the young men with whom they became enamored Synonyms dryad, hamadryad, nymph, oread, wood nymphRelated Words mermaid, Nereid, Oceanid, sea-maid (or sea-maiden), siren, water nymph

2 a young wingless often wormlike form (as a grub or caterpillar) that hatches from the egg of many insects students in science class learning how to distinguish a dragonfly naiad from an earthworm Synonyms larva, nymphRelated Words pupa