Definition of chaffweed in English:

chaffweed

noun

  • A tiny European pimpernel with pink or white flowers.

    • ‘A. minima (chaffweed) is a small, spreading annual with alternate, oval, stalkless leaves.’
    • ‘We have also found smooth boisduvalia and chaffweed under irrigation pivots in cultivated fields, and sand verbena is found in open, shifting sand dunes.’
    • ‘Alvan W. Chapman first collected chaffweed in the mid 1800s along the Caloosahatchee River (s.n., US), presumably in Lee County.’

Origin

Mid 16th century: probably from the verb chafe + weed.

Pronunciation

chaffweed

/ˈCHafwēd/