What is the meaning of Lotus?

A name of several kinds of water lilies; as Nelumbium speciosum, used in religious ceremonies, anciently in Egypt, and to this day in Asia; Nelumbium luteum, the American lotus; and Nymphaea Lotus and N. caerulea, the respectively white-flowered and blue-flowered lotus of modern Egypt, which, with Nelumbium speciosum, are figured on its ancient monuments.

Source: Webster’s Revised Unabridged Dictionary (1913), via OPTED