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List of 15-letter words containing

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There are 12 fifteen-letter words containing A, C, D, H, I, O, S and U

AUTOSCHEDIASTICautoschediastic adj. (Dated) impromptu, improvised, ex tempore or offhand.
AUTOSCHEDIASTIC adj. impromptu; on the spur of the moment.
AUTOSCHEDIAZINGAUTOSCHEDIAZE v. to improvise.
CHENOPODIACEOUSchenopodiaceous adj. (Botany) Of or relating to the family Chenopodiaceae (goosefoots) (now subfamily Chenopodioideae).
CHENOPODIACEOUS adj. belonging to the goosefoot family.
CHONDROCRANIUMSCHONDROCRANIUM n. the cartilaginous parts of an embryonic cranium.
COUNTERSHADINGScountershadings n. Plural of countershading.
COUNTERSHADING n. cryptic coloration of an animal with parts normally in shadow being light and parts normally illuminated being dark thereby reducing shadows and contours.
DOLICHOSAURUSESDOLICHOSAURUS n. any member of the Dolichosauria, a group of Cretaceous fossil reptiles.
ECHINODERMATOUSechinodermatous adj. (Zoology) Relating to Echinodermata; echinodermal.
ECHINODERMATOUS adj. of or like an echinoderm.
HAMAMELIDACEOUShamamelidaceous adj. (Botany) Belonging to the Hamamelidaceae.
HAMAMELIDACEOUS adj. belonging to the witch-hazel family.
HUMIDIFICATIONShumidifications n. Plural of humidification.
HUMIDIFICATION n. the act of humidifying.
PHOTODUPLICATESphotoduplicates n. Plural of photoduplicate.
PHOTODUPLICATE v. to duplicate by photocopier.
RADICULOPATHIESradiculopathies n. Plural of radiculopathy.
UNSOPHISTICATEDunsophisticated adj. Not sophisticated; lacking sophistication.
UNSOPHISTICATED adj. not sophisticated.

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: 110 words
  • Scrabble in French: 25 words
  • Scrabble in Spanish: 11 words
  • Scrabble in Italian: 19 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 10 words


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