ˌakəˈlēə, əˈkilēə noun
Usage: capitalized
Etymology: New Latin, from Latin achillea, achilleos, a plant, from Greek achilleios, a plant supposed to have been used medicinally by Achilles, from achilleios of Achilles, from Achilleus Achilles
: a large genus of north temperate herbs (family Compositae) having divided leaves, small heads of tubular and ray flowers, and flattened achenes — see sneezewort , yarrow