Definition of goldthread in English:

goldthread

Syllabification: gold·thread
Pronunciation: /ˈɡōldTHred
 
/

noun

A plant of the buttercup family that yields a yellow dye and is used in herbal medicine as a treatment for mouth ulcers. It grows in North America and northeastern Asia.
  • Genus Coptis, family Ranunculaceae: several species, in particular C. groenlandica and C. trifolia

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Word of the day flagitious
Pronunciation: fləˈjiSHəs
adjective
(of a person or their actions) criminal; villainous