List of 13-letter words beginning with

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There are 2 thirteen-letter words beginning with RADIOACTINI

radioactinide  radioactinium

2 definitions found

• radioactinide — n. (Physics) Any radioactive isotope of an actinide.
• radioactinium — n. (Physics) The radioactive isotope of actinium, ²²⁷₈₉Ac, having…

See this list for:

• Scrabble in English: no word
• French Wiktionary: 2 words
• Spanish Wiktionary: no word
• Italian Wiktionary: no word
• German Wiktionary: no word
• Portuguese Wiktionary: no word
• Dutch Wiktionary: no word

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