Medical Definition of Achillea
: a large genus of temperate composite herbs of the northern hemisphere that have divided leaves and small heads of disk and ray flowers, are a source of achilleine, and include one (A. millefolium) formerly widely used as a medicinal herb
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
- On Contractions of Multiple Words
- A Look at Uncommon Onomatopoeia
- Is Singular 'They' a Better Choice?