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There are 16 fifteen-letter words containing D, E, L, 2O, R, S and U

AUTOTETRAPLOIDSautotetraploids n. Plural of autotetraploid.
AUTOTETRAPLOID n. an individual or strain whose chromosome complement consists of four copies of a single genome due to doubling of an ancestral chromosome complement.
COUNTERMELODIEScountermelodies n. Plural of countermelody.
counter-melodies n. Plural of counter-melody.
counter␣melodies n. Plural of counter melody.
DECOLOURISATIONdecolourisation n. Alternative spelling of decolorization.
DECOLOURISATION n. the process of decolourising, also DECOLORISATION, DECOLORIZATION, DECOLOURIZATION.
DEMERITORIOUSLYDEMERITORIOUS adv. not meritorious.
DESSERTSPOONFULdessertspoonful n. A quantity of something about the volume of a dessertspoon, or 2 teaspoons.
DESSERTSPOONFUL n. the contents of a dessert spoon.
DEUTERANOMALOUSdeuteranomalous adj. Having or relating to deuteranomaly.
DEUTERANOMALOUS adj. exhibiting partial loss of green color vision so that an increased intensity of green is required in a mixture of red and green to match a given yellow.
DOLICHOSAURUSESDOLICHOSAURUS n. any member of the Dolichosauria, a group of Cretaceous fossil reptiles.
DOWNREGULATIONSdownregulations n. Plural of downregulation.
DOWNREGULATION n. the process of reducing or suppressing a response to a stimulus.
EDRIOPHTHALMOUSedriophthalmous adj. (Zoology) Pertaining to the Edriophthalma, a former classification of peracarids.
EDRIOPHTHALMOUS adj. of crustaceans, with stalkless eyes, also EDRIOPHTHALMIAN, EDRIOPHTHALMIC.
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.
HOUSEHOLDERSHIPhouseholdership n. The position or role of a householder.
HOUSEHOLDERSHIP n. the office of householder.
HYDROCELLULOSESHYDROCELLULOSE n. a gelatinous material obtained by hydration of cellulose, used in papermaking, etc.
ORNITHODELPHOUSORNITHODELPHOUS adj. of or like the Ornithodelphia, monotremes, also ORNITHODELPHIAN, ORNITHODELPHIC.
RIBONUCLEOSIDESribonucleosides n. Plural of ribonucleoside.
RIBONUCLEOSIDE n. a nucleoside containing ribose.
RIBONUCLEOTIDESribonucleotides n. Plural of ribonucleotide.
RIBONUCLEOTIDE n. a nucleotide containing ribose.
SCLERODERMATOUSsclerodermatous adj. Relating to, or exhibiting, scleroderma.
SCLERODERMATOUS adj. hard-skinned; having bony armour.

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: 225 words
  • Scrabble in French: 41 words
  • Scrabble in Spanish: 16 words
  • Scrabble in Italian: 14 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 82 words


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