milfoil | sense examples, Usage and Definition from wordnet dictionary online

Noun milfoil has 1 sense

yarrow, milfoil, Achillea millefolium - 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
--₁ is a kind of achillea