Definition of goat weed in US English:

goat weed

noun

rare
  • Goutweed, Aegopodium podagraria (family Apiaceae), a perennial flowering plant found in moist, shaded environments, having erect triangular stems, broad toothed leaves, and umbels of small white flowers.

Origin

Mid 18th century; earliest use found in The Gentleman's Magazine. Alteration of gout-weed, by folk-etymological association with goat.

Pronunciation

goat weed

/ˈɡəʊt wiːd/