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List of 15-letter words containing

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There are 12 fifteen-letter words containing E, 2L, O, 2P and R

COMPTROLLERSHIPcomptrollership n. The position or office of a comptroller.
COMPTROLLERSHIP n. the office of comptroller.
CONTRAPROPELLERCONTRAPROPELLER n. one of a pair of propellers rotating in opposite directions.
LEPIDOPTEROLOGYlepidopterology n. (Biology, zoology, entomology) The scientific study of butterflies and moths (the Lepidoptera).
lepidopterology n. Lepidoptery, (the hobby of butterfly collecting).
LEPIDOPTEROLOGY n. the study of butterflies and moths.
MEGASPOROPHYLLSmegasporophylls n. Plural of megasporophyll.
MEGASPOROPHYLL n. a specialised leaf bearing or subtending one or more megasporangia.
MONOPROPELLANTSmonopropellants n. Plural of monopropellant.
MONOPROPELLANT n. a rocket propellant containing both the fuel and the oxidizer in a single substance.
PALAEOGRAPHICALpalaeographical adj. Of or pertaining to palaeography.
palæographical adj. Obsolete spelling of paleographical.
PALAEOGRAPHICAL adj. related to palaeography, the study of ancient writings, also PALEOGRAPHIC.
PARALLELOPIPEDAPARALLELOPIPEDA plural of parallelopipedon* (which has sixteen letters), a solid figure bounded by six parallelograms, opposite pairs being identical and parallel.
PARALLELOPIPEDSparallelopipeds n. Plural of parallelopiped.
PARALLELOPIPED n. a solid figure bounded by six parallelograms, opposite pairs being identical and parallel.
PHOTOMULTIPLIERphotomultiplier n. (Physics) A device, normally in the form of a tube, that uses a photocathode to convert photons into…
PHOTOMULTIPLIER n. a photocell with a series of dynodes which amplify the emission current by electron multiplication.
POLYCHLOROPRENEpolychloroprene n. (Organic chemistry) A polymer of chloroprene.
POLYCHLOROPRENE n. neoprene.
PREPOSITIONALLYprepositionally adv. In a prepositional manner.
prepositionally adv. As a preposition.
PREPOSITIONAL adv. relating to a preposition.
PROPRIETORIALLYproprietorially adv. In a proprietorial manner; like an owner.
PROPRIETORIAL adv. relating to ownership.

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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