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List of 13-letter words containing

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There are 15 thirteen-letter words containing A, E, F, 2I, L and 2R

ARGILLIFEROUSargilliferous adj. (Geology) Producing clay; rich in argil.
ARGILLIFEROUS adj. containing or yielding clay.
DEFIBRILLATORdefibrillator n. (Cardiology) An electronic device used internally or externally that delivers a controlled electric…
DEFIBRILLATOR n. an electronic device that applies an electric shock to restore the rhythm of a fibrillating heart.
FAMILIARISERSfamiliarisers n. Plural of familiariser.
FAMILIARISER n. one who familiarises, also FAMILIARIZER.
FAMILIARIZERSfamiliarizers n. Plural of familiarizer.
FAMILIARIZER n. one who familiarizes, also FAMILIARISER.
FORAMINIFERALforaminiferal adj. Of, pertaining to, or resembling the foraminifers; foraminiferous.
FORAMINIFERAL adj. of or like a foraminifer.
IRREFRANGIBLEirrefrangible adj. Not to be broken or transgressed against; inviolable.
irrefrangible adj. (Physics) Incapable of being refracted.
IRREFRANGIBLE adj. that cannot or should not be broken.
IRREFRANGIBLYirrefrangibly adv. In an irrefrangible manner.
IRREFRANGIBLE adv. that cannot or should not be broken.
MICROFILARIAEmicrofilariae n. Plural of microfilaria.
MICROFILARIA n. the minute larval form of a filarial worm.
NEUROFIBRILARNEUROFIBRILAR adj. of or like a neurofibril, also NEUROFIBRILLAR, NEUROFIBRILLARY.
PREAMPLIFIERSpreamplifiers n. Plural of preamplifier.
PREAMPLIFIER n. an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits.
PREFERABILITYpreferability n. The state of being preferable.
PREFERABILITY n. the state of being preferable.
PROLIFERATINGproliferating v. Present participle of proliferate.
PROLIFERATE v. to grow or increase in number rapidly.
PROLIFERATIONproliferation n. (Uncountable) The process by which an organism produces others of its kind; breeding, propagation, procreation…
proliferation n. (Countable) The act of increasing or rising; augmentation, amplification, enlargement, escalation, aggrandizement.
proliferation n. (Countable) The result of building up; buildup, accretion.
PROLIFERATIVEproliferative adj. (Not comparable, cytology) of or pertaining to proliferation, especially of cells.
proliferative adj. Proliferating; tending to proliferate.
proliferative n. Such a cell.
REFORMABILITYreformability n. The quality of being reformable; potential for reform.
REFORMABILITY n. the state of being reformable.

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: 76 words
  • Scrabble in French: 93 words
  • Scrabble in Spanish: 78 words
  • Scrabble in Italian: 116 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 371 words


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