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List of 13-letter words containing

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There are 12 thirteen-letter words containing E, I, 3O, P and 2R

BIOPROSPECTORbioprospector n. One who engages in bioprospecting.
CHROMOPROTEINchromoprotein n. (Biochemistry) Any protein, such as haemoglobin, that has a metal-containing pigmented group such as haem.
CHROMOPROTEIN n. any of various proteins (as hemoglobins, carotenoids, or flavoproteins) having a pigment as a prosthetic group.
COPROPRIETORScoproprietors n. Plural of coproprietor.
COPROPRIETOR n. a joint proprietor.
ISOPROTERENOLisoproterenol n. (Pharmacology) Synonym of isoprenaline.
ISOPROTERENOL n. a sympathomimetic agent used in the treatment of asthma.
MORPHOTROPIESMORPHOTROPY n. the effect on crystalline form of the addition or substitution of an element or radical.
ORTHOPTEROIDSorthopteroids n. Plural of orthopteroid.
ORTHOPTEROID n. a member of the Orthoptera, cockroaches.
OVERPROMOTINGoverpromoting v. Present participle of overpromote.
OVERPROMOTE v. to promote excessively.
POLTROONERIESpoltrooneries n. Plural of poltroonery.
POLTROONERY n. mean pusillanimity, cowardice.
PROPORTIONATEproportionate adj. In proportion; proportional; commensurable.
proportionate adj. Harmonious and symmetrical.
proportionate v. (Transitive) To make proportionate.
PROPRIOCEPTORproprioceptor n. (Anatomy) A nerve ending that functions as a sensory receptor in muscles, tendons, joints and the inner…
PROPRIOCEPTOR n. a sense organ receptive to stimuli from within the body.
PROTONOTARIESprotonotaries n. Plural of protonotary.
PROTONOTARY n. a court clerk; a chief clerk of any of various courts of law, also PROTHONOTARY.
PROTOTROPHIESprototrophies n. Plural of prototrophy.
PROTOTROPHY n. the state of being prototrophic.

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: 90 words
  • Scrabble in French: 35 words
  • Scrabble in Spanish: 43 words
  • Scrabble in Italian: 109 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 153 words


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