- a plant, Zephyranthes atamasco, of the amaryllis family, of the southeastern U.S., bearing a single white lilylike flower sometimes tinged with purple.
Origin of atamasco lily
1620–30, Americanism; earlier attamusco < Virginia Algonquian
Also called fairy lily.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018