achillea
- n any of several plants of the genus Achillea native to Europe and having small white flowers in flat-topped flower heads
achillea millefolium
- n ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white florets; widely naturalized in North America
achillea ptarmica
- n Eurasian herb having loose heads of button-shaped white flowers and long grey-green leaves that cause sneezing when powdered
achilles
- n a mythical Greek hero of the Iliad; a foremost Greek warrior at the siege of Troy; when he was a baby his mother tried to make him immortal by bathing him in a magical river but the heel by which she held him remained vulnerable--his `Achilles' heel'