Definitions for yarrowˈyær oʊ
Random House Webster's College Dictionary
any composite plant of the genus Achillea, esp. A. millefolium, having fernlike leaves and flat-topped clusters of white-to-yellow flowers.
Origin of yarrow:
bef. 900; ME yar(o)we, OE gearwe
yarrow, milfoil, Achillea millefolium(noun)
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
The green woodpecker, Picus viridis.
Origin: gearwe Cognate with Dutch gerw, (probably) German Schafgarbe.
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
The Nuttall Encyclopedia
a famous Scottish stream which rises on the confines of the shires of Peebles, Dumfries, and Selkirk, passes NE. through the Loch of the Lowes and St. Mary's Loch, and joins the Ettrick 2 m. above Selkirk after a course of 25 m.