English Dictionary

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niggerhead (ˈnɪɡəˌhed) 



  1. = negrohead
  2. = negrohead
  3. (geology, US, informal) any hard black rock or stone
  4. (ecology, New Zealand & US, informal) a knotted mass of roots in a swamp
  5. (US, informal) any of various round, thorny cacti found in the Southern States
  6. (US, informal) a colloquial name for the black-eyed Susan, Rudbeckia hirta
  7. (Australian, informal) any of various grasses with dark seed-heads, belonging to the genus Enneapogon
  8. (US, informal) a colloquial name for any of several varieties of freshwater clam
  9. (US, pejorative, old-fashioned) a person active in obtaining political rights for black people
  10. (nautical, informal) a colloquial name for a winch-head or bollard


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