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There are 16 twelve-letter words containing H, 2O, R, S and X

AUXOTROPHIESauxotrophies n. Plural of auxotrophy.
AUXOTROPHY n. the state of being auxotrophic, requiring a specific growth substance beyond the minimum required for normal metabolism.
AXEROPHTHOLSAXEROPHTHOL n. vitamin A, a pale yellow crystalline substance, deficiency of which causes xerophthalmia.
DOXOGRAPHERSdoxographers n. Plural of doxographer.
DOXOGRAPHER n. a compiler of the opinions of philosophers.
DOXOGRAPHIESdoxographies n. Plural of doxography.
DOXOGRAPHY n. the compilation of opinions on philosophers.
EXHORTATIONSexhortations n. Plural of exhortation.
EXHORTATION n. an act or instance of exhorting.
HETERODOXIESheterodoxies n. Plural of heterodoxy.
HETERODOXY n. a heterodox opinion.
HYDROXONIUMShydroxoniums n. Plural of hydroxonium.
HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water.
MESOTHORAXESmesothoraxes n. Plural of mesothorax.
MESOTHORAX n. the middle segment of the thorax in insects.
MORPHOSYNTAXmorphosyntax n. (Linguistics) Morphology and syntax regarded as an interlinked unit.
morpho-syntax n. (Linguistics) The system of the internal structure of words (morphology) and the way in which words…
morpho-syntax n. (Linguistics, formal) Grammar.
OROPHARYNXESoropharynxes n. Plural of oropharynx.
OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis.
ORTHOPRAXIESORTHOPRAXY n. the treatment of deformities in the human body by mechanical appliances.
OXYHYDROGENSOXYHYDROGEN n. a mixture of hydrogen and oxygen used to provide an intense flame for welding.
THIXOTROPIESTHIXOTROPY n. the property of certain gels of becoming fluid when agitated and of reverting back to a gel when left to stand.
THROMBOXANESthromboxanes n. Plural of thromboxane.
THROMBOXANE n. any of several compounds formed from prostaglandin endoperoxides which, when released from blood platelets, induce platelet aggregation and arterial constriction.
UNORTHODOXESSorry, definition not available.
XEROMORPHOUSxeromorphous adj. Xeromorphic.
XEROMORPHOUS adj. of parts of a plant, protected against excessive loss of water by thick cuticles, coatings of hairs and similar structural features, also XEROMORPHIC.

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: 64 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 11 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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