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There are 11 twelve-letter words containing E, 2I, 2O and 3S

CHEMIOSMOSISchemiosmosis n. (Chemistry) Any chemical reaction that occurs through an intervening semipermeable membrane, especially…
CHEMIOSMOSIS n. the mechanism by which the synthesis and utilization of the biochemical energy source ATP is regulated.
CONSISTORIESconsistories n. Plural of consistory.
CONSISTORY n. a solemn assembly or council; a church tribunal.
DIOICOUSNESSDIOICOUSNESS n. the state of being dioicous.
ISOCHRONISESISOCHRONISE v. to make isochronous, also ISOCHRONIZE.
MISSIOLOGIESmissiologies n. Plural of missiology.
MISSIOLOGY n. the study of the church's mission esp. with respect to missionary activity.
OBSESSIONISTobsessionist n. A person who has an obsession; an obsessive.
OBSESSIONIST n. someone who is obsessed by a fixed idea.
SEISMOLOGIESSEISMOLOGY n. the study of earthquakes.
SEISMOLOGISTseismologist n. A person who is skilled at, professes, or practices seismology.
SEISMOLOGIST n. one who studies earthquakes.
SEISMOSCOPICseismoscopic adj. Relating to the seismoscope.
SEISMOSCOPIC adj. pertaining to a seismoscope, an instrument for detecting earthquakes.
SEMIOLOGISTSsemiologists n. Plural of semiologist.
SEMIOLOGIST n. a student of semiology, the study of signs and signals.
SOLILOQUISESsoliloquises v. Third-person singular simple present indicative form of soliloquise.
SOLILOQUISE v. to talk reflectively to oneself, also SOLILOQUIZE.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 36 words
  • Scrabble in French: 57 words
  • Scrabble in Spanish: 37 words
  • Scrabble in Italian: 61 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 35 words


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