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There are 8 eleven-letter words containing OACTI

BIOACTIVITY• bioactivity n. (Biology, medicine) Biologic activity, such as biochemical or immunologic reactivity: the biologic effect…
• BIOACTIVITY n. the state of being bioactive.
NEUROACTIVE• neuroactive adj. That acts on the central nervous system.
• NEUROACTIVE adj. stimulating neural tissue.
PHOTOACTIVE• photoactive adj. Able to convert the energy of light into electricity via photoelectricity.
• photoactive adj. Able to react chemically under the influence of light.
• PHOTOACTIVE adj. affected physically or chemically by light or other radiation.
PROACTIVELY• proactively adv. In a proactive manner; so as to look or plan ahead.
• pro-actively adv. Alternative form of proactively.
RADIOACTIVE• radioactive adj. Exhibiting radioactivity.
• radioactive adj. (Figurative, rare) Dangerous and disgusting, particularly of people or ideas.
• radioactive n. Any radioactive substance.
RETROACTING• retroacting v. Present participle of retroact.
• RETROACT v. to act in return.
RETROACTION• retroaction n. Any action that has an influence due to a past event.
• retroaction n. An opposing action; a reaction.
• RETROACTION n. acting backward.
RETROACTIVE• retroactive adj. Extending in scope, effect, application or influence to a prior time or to prior conditions.
• RETROACTIVE adj. taking effect as from a previous date.

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: 30 words
  • Scrabble in French: 8 words
  • Scrabble in Spanish: 7 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 10 words


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