D defs.my
Entry 1 sense Webster, 1913

Yarrow

/yär'-ō/ · Yar·row · IPA /ˈjæɹoʊ/
01 n. An American and European composite plant (Achillea Millefolium) with very finely dissected leaves and small white corymbed flowers. It has …
  1. 1.
    An American and European composite plant (Achillea Millefolium) with very finely dissected leaves and small white corymbed flowers. It has a strong, and somewhat aromatic, odor and taste, and is sometimes used in making beer, or is dried for smoking. Called also milfoil, and nosebleed.(Bot.) Also: milfoil, nosebleed