[1] : The Collaborative International Dictionary of English v.0.48

milfoil \mil"foil\, n. f. mille-feuille, l. millefolium; mille
   thousand + folium leaf. see foil a leaf. bot.
   a common composite herb achillea millefolium with white
   flowers and finely dissected leaves; yarrow.
   1913 webster

   water milfoil bot., an aquatic herb with dissected leaves
      myriophyllum.
      1913 webster
see also:
foil achillea millefolium water milfoil myriophyllum 

[2] : The Collaborative International Dictionary of English v.0.48

yarrow \yar"row\, n. oe. yarowe, yarwe, yogharowe, as.
   gearwe; akin to d. gerw, ohg. garwa, garawa, g. garbe,
   schafgarbe, and perhaps to e. yare. bot.
   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.
   1913 webster
see also:
achillea millefolium milfoil nosebleed 

[3] : WordNet (r) 2.0

milfoil
     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 syn: yarrow, achillea
         millefolium
see also:
yarrow achillea millefolium 

Milfoil >> M Words
Milfoil, definition of term: Milfoil
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