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单词 ironweed
释义

Definition of ironweed in English:

ironweed

noun ˈʌɪənwiːd
  • Any of various plants growing as weeds of cultivated land and typically having tough or wiry stems; specifically (a) black or common knapweed, Centaurea nigra (now rare); (b) North American any of several species of the genus Vernonia (family Asteraceae (Compositae)).

Origin

Early 19th century; earliest use found in Thomas Batchelor (1775–1838), farmer and writer on language. From iron + weed.

Definition of ironweed in US English:

ironweed

nounˈʌɪənwiːd
  • Any of various plants growing as weeds of cultivated land and typically having tough or wiry stems; specifically (a) black or common knapweed, Centaurea nigra (now rare); (b) North American any of several species of the genus Vernonia (family Asteraceae (Compositae)).

Origin

Early 19th century; earliest use found in Thomas Batchelor (1775–1838), farmer and writer on language. From iron + weed.

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更新时间:2024/10/19 17:18:51