Definition of charlock in English:

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charlock

Pronunciation: /ˈCHärˌläk/
/ˈCHärlək/

noun

A wild mustard with yellow flowers, commonly found as a weed in fields and along roadsides.
  • Brassica kaber (or Sinapis arvensis), family Brassicaceae
Example sentences
  • At one test site, researchers found a GM version of the common weed charlock growing in the field, the year after the GM trial.
  • Chickweed, charlock (yellow flowers) and runch (white flowers) plants are now big enough to cause some concern.
  • In California, the cultivated radish, Raphanus sativus, and the jointed charlock, R. raphanistrum, have completely merged.

Origin

Old English cerlic, cyrlic, of unknown origin.

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