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There are 15 twelve-letter words containing E, M, 2N, 2O, P and R

ENANTIOMORPHenantiomorph n. A mirror image, a form related to another as an object is to its image in a mirror.
enantiomorph n. Either of a pair of crystals that are mirror images of each other, and are optically active.
enantiomorph n. (Chemistry) A similar molecule or compound; an enantiomer.
HARMONIPHONEharmoniphone n. A free-reed musical instrument played with a keyboard, in which the sounds are produced by reeds set…
HARMONIPHONE n. a keyboard wind instrument with reeds, also HARMONIPHON.
HYMENOPTERONhymenopteron n. Any insect of the order Hymenoptera.
HYMENOPTERON n. an order of insect having four membranous wings, e.g. ants, bees, wasps, also HYMENOPTERAN.
MELANOTROPINmelanotropin n. (Endocrinology, biochemistry) Synonym of melanocyte-stimulating hormone.
MELANOTROPIN n. a hormone secreted by the pituitary gland which stimulates the production of melanin by melanocytes.
MEROPLANKTONmeroplankton n. (Biology) Any organism that spends part of its life-cycle (especially the larval stage) as plankton.
MEROPLANKTON n. plankton consisting of certain larvae that do not spend all their life as plankton.
MISPRONOUNCEmispronounce v. (Transitive) To pronounce (A word, phrase, etc.) incorrectly.
MISPRONOUNCE v. to pronounce incorrectly.
MONOTERPENESmonoterpenes n. Plural of monoterpene.
MONOTERPENE n. any of a class of terpenes containing two isoprene units per molecule.
NONCOMPOSERSnoncomposers n. Plural of noncomposer.
NONCOMPOSER n. one who is not a composer.
NONCOMPUTERSSorry, definition not available.
NONPERFORMERnonperformer n. Someone who is not a performer.
NONPERFORMER n. one who is not a performer.
NONPETROLEUMnonpetroleum adj. (Of fuel) Not petroleum-based, not containing petroleum.
NONPETROLEUM adj. not derived from petroleum.
PERISPOMENONperispomenon adj. (Linguistics, of a word) Having a circumflex accent on the last syllable.
perispomenon n. (Linguistics) A word with a circumflex accent on the last syllable.
PERISPOMENON n. a word having a circumflex accent on the final syllable.
PREMONITIONSpremonitions n. Plural of premonition.
PREMONITION n. previous notice or warning.
PROLEGOMENONprolegomenon n. (Usually in the plural) A prefatory discussion; a formal essay or critical discussion serving to introduce…
PROLEGOMENON n. prefatory remarks; specifically, a formal essay or critical discussion serving to introduce and interpret an extended work.
PROLONGMENTSprolongments n. Plural of prolongment.
PROLONGMENT n. the act of prolonging.

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: 75 words
  • Scrabble in French: 48 words
  • Scrabble in Spanish: 29 words
  • Scrabble in Italian: 87 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 10 words


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