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There are 8 eight-letter words beginning with THIO

THIONATEthionate n. (Chemistry) Any salt or ester of a thionic acid.
THIONATE n. a sulphur compound.
THIONINEthionine n. (Chemistry) An artificial red or violet dyestuff consisting of a complex sulfur derivative of certain…
thionine n. (Organic chemistry) The unsaturated nine-membered heterocycle having eight carbon atoms, one sulfur…
THIONINE n. a violet dye, also THIONIN.
THIONINSthionins n. Plural of thionin.
THIONIN n. a violet dye, also THIONINE.
THIONYLSthionyls n. Plural of thionyl.
THIONYL n. a compound containing the group -SO.
THIOPHENthiophen n. Archaic form of thiophene.
THIOPHEN n. a type of sulphur compound.
THIOPHILTHIOPHIL adj. of bacteria, having an affinity for sulphur.
THIOTEPAthiotepa n. A particular drug used in chemotherapy.
thioTEPA n. A particular drug used in chemotherapy.
THIOTEPA n. a sulfur compound, used as an antineoplastic.
THIOUREAthiourea n. (Organic chemistry) Any of a class of compounds based on NH2-CS-NH2, formally derived from urea by replacing…
THIOUREA n. urea with its oxygen replaced by sulphur.

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: 23 words
  • Scrabble in French: 3 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: 1 word
  • Scrabble in Romanian: no word


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