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There are 20 twelve-letter words containing A, D, N, 2O, P, R and S

BRANCHIOPODSbranchiopods n. Plural of branchiopod.
BRANCHIOPOD n. any of a subclass of Crustacea with numerous flattened, leaf-shaped, lobed swimming-feet.
DEPLORATIONSdeplorations n. Plural of deploration.
DEPLORATION n. the act of deploring.
DEPORTATIONSdeportations n. Plural of deportation.
DEPORTATION n. an act or instance of deporting.
DISCOPHORANSDISCOPHORAN n. a jellyfish.
DISOPERATIONDISOPERATION n. a mutually harmful relationship between two organisms in a community.
GASTROPODANSGASTROPODAN n. a gastropod.
HYDROPHANOUShydrophanous adj. (Mineralogy) Made transparent by immersion in water.
HYDROPHANOUS adj. becoming transparent when placed in water.
ODONTOGRAPHSodontographs n. Plural of odontograph.
ODONTOGRAPH n. an instrument for obtaining curves for gear-teeth.
PERIODONTIASPERIODONTIA n. the branch of dentistry concerned with periodontal diseases.
PONDERATIONSponderations n. Plural of ponderation.
PONDERATION n. weighing or weighing up.
PROBOSCIDEANproboscidean n. Any of various large, herbivorous mammals, of the order Proboscidea, that have a trunk; the elephants.
PROBOSCIDEAN n. any of an order of large mammals comprising the elephants and extinct related forms, also PROBOSCIDIAN.
PROBOSCIDIANproboscidian adj. Alternative spelling of proboscidean.
proboscidian n. Alternative spelling of proboscidean.
PROBOSCIDIAN n. any of an order of large mammals comprising the elephants and extinct related forms, also PROBOSCIDEAN.
PSEUDORANDOMpseudorandom adj. Of a sequence of numbers, such that it has all the properties of a random sequence following some probability…
PSEUDORANDOM adj. being or involving entities (as numbers) that are selected by a definite computational process but that satisfy one or more standard tests for statistical randomness.
RADIOPHONICSradiophonics n. (UK, dated) radiophonic sounds and music, or the techniques used to produce them.
RADIOPHONICS n. the business of producing electronic music.
RADIOPHONIESRADIOPHONY n. the art or practice of using the radiophone.
RADIOPHONISTRADIOPHONIST n. one who uses a radiophone.
RHODODAPHNESRHODODAPHNE n. (Spenser) oleander.
SCOLOPENDRASscolopendras n. Plural of scolopendra.
SCOLOPENDRA n. a centipede of the genus Scolopendra of myriapods, including large tropical centipedes up to a foot in length.
SCORPAENOIDSscorpaenoids n. Plural of scorpaenoid.
SCORPAENOID n. any member of the scorpion fish family.
TRANSPONDORStranspondors n. Plural of transpondor.
TRANSPONDOR n. a type of radio or radar transmitter-receiver that transmits signals automatically when it receives predetermined signals, also TRANSPONDER.

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: 128 words
  • Scrabble in French: 32 words
  • Scrabble in Spanish: 147 words
  • Scrabble in Italian: 140 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 22 words


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