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List of 13-letter words containing

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There are 20 thirteen-letter words containing E, F, L, O, P and 2R

FLAMEPROOFERSflameproofers n. Plural of flameproofer.
FLAMEPROOFER n. one who flameproofs.
PERFUNCTORILYperfunctorily adv. In a perfunctory manner, without interest or concern for quality.
PERFUNCTORY adv. characterized by routine or superficiality, mechanical.
PETROLIFEROUSpetroliferous adj. (Geology, petrology, of a rock or geologic formation) Containing or yielding petroleum.
PETROLIFEROUS adj. bearing petroleum.
PRAEFECTORIALpraefectorial adj. Alternative form of prefectorial.
PRAEFECTORIAL adj. of or like a praefect.
PREFATORIALLYPREFATORIAL adv. serving as preface or opening remarks.
PREFLORATIONSpreflorations n. Plural of prefloration.
PREFLORATION n. the manner in which the petals and sepals are folded in the flower-bud.
PREFORMULATEDpreformulated v. Simple past tense and past participle of preformulate.
PREFORMULATE v. to formulate in advance.
PREFORMULATESpreformulates v. Third-person singular simple present indicative form of preformulate.
PREFORMULATE v. to formulate in advance.
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.
PROLIFEROUSLYproliferously adv. In a proliferous manner.
PROLIFEROUS adv. producing buds and/or new plants vegetatively.
REFLECTOGRAPHreflectograph n. An image produced by reflectography.
REFLECTOGRAPH n. an image produced by reflectography.
REPROACHFULLYreproachfully adv. In a reproachful manner.
REPROACHFUL adv. reproving.
REPTILIFEROUSreptiliferous adj. (Geology) Containing fossils of reptiles.
REPTILIFEROUS adj. of rock, bearing fossil reptiles.
SUPERFRONTALSsuperfrontals n. Plural of superfrontal.
SUPERFRONTAL n. a covering hanging over the upper edge of an altar frontal.
SUPERPOWERFULsuperpowerful adj. Very powerful; having, or capable of exerting great power, potency, or influence.
SUPERPOWERFUL adj. very powerful.
ULTRAPOWERFULultrapowerful adj. (Rare) Extremely or exceedingly powerful; having, or capable of exerting great power, potency, or influence.
ULTRAPOWERFUL adj. very very powerful.
UNPERFORMABLEunperformable adj. Not performable; that cannot be performed.
UNPERFORMABLE adj. not performable.
UNREPROACHFULunreproachful adj. Not reproachful.
UNREPROACHFUL adj. not reproachful.

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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