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List of 15-letter words containing

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There are 19 fifteen-letter words containing A, D, 2E, P, T and Y

CYCLOPENTADIENEcyclopentadiene n. (Organic chemistry) an unsaturated alicyclic hydrocarbon, C5H6; it forms complexes with some transition…
CYCLOPENTADIENE n. a colourless liquid unsaturated cyclic hydrocarbon obtained in the cracking of petroleum hydrocarbons and the distillation of coal tar, used in the manufacture of plastics and insecticides.
CYPROHEPTADINEScyproheptadines n. Plural of cyproheptadine.
CYPROHEPTADINE n. a powerful antihistamine drug used to treat allergies.
DAGUERREOTYPERSdaguerreotypers n. Plural of daguerreotyper.
DAGUERREOTYPER n. one who develops daguerreotypes, also DAGUERREOTYPIST.
DAGUERREOTYPIESDAGUERREOTYPY n. the art of daguerreotyping.
DAGUERREOTYPINGdaguerreotyping v. Present participle of daguerreotype.
DAGUERREOTYPE v. to develop by daguerreotype, a method of photography by mercury vapour development of silver iodide.
DAGUERREOTYPISTdaguerreotypist n. A person who makes daguerreotypes.
DAGUERREOTYPIST n. one who practises daguerreotyping, also DAGUERREOTYPER.
DECIPHERABILITYdecipherability n. (Uncountable) The condition of being decipherable.
decipherability n. (Countable) The extent to which something can be deciphered.
DECIPHERABILITY n. the quality of being decipherable.
DEPHOSPHORYLATEdephosphorylate v. To cause, or undergo dephosphorylation.
DEPHOSPHORYLATE v. to remove phosphate groups from an organic compounds.
DERMATOPHYTOSESdermatophytoses n. Plural of dermatophytosis.
DERMATOPHYTOSIS n. a fungal infection of the skin, esp. the feet.
DEVELOPMENTALLYdevelopmentally adv. In terms of development.
DEVELOPMENTAL adv. relating to development.
ENCYCLOPAEDISTSencyclopaedists n. Plural of encyclopaedist.
encyclopædists n. Plural of encyclopædist.
ENCYCLOPAEDIST n. one who compiles encyclopaedias, also ENCYCLOPEDIST.
HYPERSTIMULATEDhyperstimulated v. Simple past tense and past participle of hyperstimulate.
HYPERSTIMULATE v. to stimulate excessively.
HYPERVENTILATEDhyperventilated v. Simple past tense and past participle of hyperventilate.
HYPERVENTILATE v. to breathe rapidly and deeply.
LYMPHADENITISESlymphadenitises n. Plural of lymphadenitis.
LYMPHADENITIS n. inflammation of the lymph nodes.
METHYLPHENIDATEmethylphenidate n. (Medicine) A stimulant used to treat attention deficit hyperactivity disorder and narcolepsy, better…
METHYLPHENIDATE n. a stimulant used in treating attention deficit disorder.
PERISSODACTYLESPERISSODACTYLE n. an animal of the Perissodactyla, a division of ungulates with an odd number of toes, including the horse, tapir and rhinoceros, also PERISSODACTYL.
RADIOTELEGRAPHYradiotelegraphy n. The process and techniques of sending telegrams using radio waves rather than wires.
radio␣telegraphy n. The transmission of Morse code (etc) using radio.
RADIOTELEGRAPHY n. signalling by radiotelegraph, wireless telegraphy.
REDUPLICATIVELYreduplicatively adv. In a reduplicative manner.
REDUPLICATIVE adv. relating to reduplication.
UNDEPENDABILITYundependability n. The quality of being undependable.

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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 209 words
  • Scrabble in French: 17 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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