Smith's Bible Dictionary

Diana This Latin word, properly denoting a Roman divinity, is the representative of the Greek Artemus, the tutelary goddess of the Ephesians, who plays so important a part in the narrative of Acts 19 . The Ephesian Diana was, however, regarded as invested with very different attributes, and is rather to be identified with Astarte and other female divinities of the East. The head wore a mural crown, each hand held a bar of metal, and the lower part ended in a rude block covered with figures of animals and mystic inscriptions. This idol was regarded as an object of peculiar sanctity, and was believed to have fallen down from heaven. (Acts 19:35)