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There are 3 seven-letter words beginning with ONCO

ONCOGEN• oncogen n. Any agent that causes tumors.
• ONCOGEN n. an agent producing cancerous tumours, also ONCOGENE.
ONCOMES• oncomes n. Plural of oncome.
• ONCOME n. (Scots) a coming on, a sudden onset, e.g. of rain, also ONDING.
ONCOSTS• oncosts n. Plural of oncost.
• ONCOST n. (Scots) an overhead expense.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 9 words
  • Scrabble in French: no word
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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