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List of 15-letter words containing

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There are 20 fifteen-letter words containing C, D, E, H, 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.
BOUSTROPHEDONICboustrophedonic adj. Relating to the boustrophedon mode of writing.
BOUSTROPHEDONIC adj. having alternate lines written in opposite directions.
CHENOPODIACEOUSchenopodiaceous adj. (Botany) Of or relating to the family Chenopodiaceae (goosefoots) (now subfamily Chenopodioideae).
CHENOPODIACEOUS adj. belonging to the goosefoot family.
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.
DICHOTOMOUSNESSdichotomousness n. The quality of being dichotomous.
DICHOTOMOUS n. forking into two equal branches.
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.
ENCHONDROMATOUSenchondromatous adj. Relating to enchondroma.
ENCHONDROMATOUS adj. of or like an enchondroma, an abnormal cartilaginous growth.
HAMAMELIDACEOUShamamelidaceous adj. (Botany) Belonging to the Hamamelidaceae.
HAMAMELIDACEOUS adj. belonging to the witch-hazel family.
HETERODACTYLOUSheterodactylous adj. (Zoology) Having the first and second toes turned backward, as in the trogons.
HETERODACTYLOUS adj. having the first and second toes turned backwards, as in trogons, and not the first and fourth as in parrots.
HOMOCHLAMYDEOUShomochlamydeous adj. (Botany) Having the perianth not divided into calyx and corolla.
HOMOCHLAMYDEOUS adj. with calyx and corolla similar.
HYDROCELLULOSESHYDROCELLULOSE n. a gelatinous material obtained by hydration of cellulose, used in papermaking, etc.
HYDROCEPHALUSEShydrocephaluses n. Plural of hydrocephalus.
HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY.
MONOCHLAMYDEOUSmonochlamydeous adj. (Botany) Having a single floral envelope, that is, a calyx without a corolla, or, possibly, in rare…
MONOCHLAMYDEOUS adj. having a one-whorled perianth.
PHOTODUPLICATESphotoduplicates n. Plural of photoduplicate.
PHOTODUPLICATE v. to duplicate by photocopier.
PHOTOLUMINESCEDphotoluminesced v. Simple past tense and past participle of photoluminesce.
PHOTOLUMINESCE v. to produce photoluminescence.
PHOTOREDUCTIONSphotoreductions n. Plural of photoreduction.
PHOTOREDUCTION n. chemical reduction under the influence of radiant energy, as light.
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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