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There are 19 thirteen-letter words containing E, G, I, M, 2O, P and R

ANGIOSPERMOUSangiospermous adj. (Botany) Having seeds enclosed in a pod or other pericarp.
ANGIOSPERMOUS adj. like an angiosperm, also ANGIOSPERMAL.
APOGEOTROPISMapogeotropism n. (Botany) An apogeotropic tendency.
APOGEOTROPISM n. bending up or away from the ground.
COSMOGRAPHIEScosmographies n. Plural of cosmography.
COSMOGRAPHY n. a general description of the world or of the universe.
DIAGEOTROPISMdiageotropism n. (Botany) The tendency of plant organs, such as roots, to assume a position oblique or transverse to…
DIAGEOTROPISM n. the tendency of roots to orient perpendicular to gravity.
ERGATOMORPHICergatomorphic adj. (Zoology) Having the form of a worker organism.
ERGATOMORPHIC adj. of or like an ergatomorph, an ergatoid ant.
FLAMEPROOFINGflameproofing v. Present participle of flameproof.
FLAMEPROOF v. to make resistant to damage or burning on contact with flame.
GOSSIPMONGERSgossipmongers n. Plural of gossipmonger.
GOSSIPMONGER n. one who spreads gossip.
MASTIGOPHORESmastigophores n. Plural of mastigophore.
MASTIGOPHORE n. any protozoan having one or more flagella, also MASTIGOPHORAN.
MORPHOGENESISmorphogenesis n. (Biology) The differentiation of tissues and subsequent growth of structures in an organism.
MORPHOGENESIS n. the origin or development of a body part or organ.
MORPHOGENETICmorphogenetic adj. (Biology) Of or pertaining to morphogenesis.
MORPHOGENETIC adj. relating to morphogenesis, also MORPHOGENIC.
MYRINGOSCOPESmyringoscopes n. Plural of myringoscope.
MYRINGOSCOPE n. an instrument for viewing the eardrum.
NONPERFORMINGnonperforming adj. Not performing satisfactorily; not functioning well.
nonperforming adj. Not acting as a performer.
NONPERFORMING adj. not producing the expected return.
OLIGOSPERMIASoligospermias n. Plural of oligospermia.
OLIGOSPERMIA n. the condition of having less than the normal number of spermatozoa in the semen, a cause of infertility in men.
OUTPERFORMINGoutperforming v. Present participle of outperform.
OUTPERFORM v. to exceed in performance.
OVERPROMISINGoverpromising v. Present participle of overpromise.
OVERPROMISE v. to promise too much.
OVERPROMOTINGoverpromoting v. Present participle of overpromote.
OVERPROMOTE v. to promote excessively.
PRIMATOLOGIESprimatologies n. Plural of primatology.
PRIMATOLOGY n. the study of primates.
PRIMOGENITORSprimogenitors n. Plural of primogenitor.
PRIMOGENITOR n. the earliest ancestor; an ancestor or a forefather.
SPERMATOGONIAspermatogonia n. Plural of spermatogonium.
SPERMATOGONIUM n. a primitive male germ cell.

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: 109 words
  • Scrabble in French: 15 words
  • Scrabble in Spanish: 31 words
  • Scrabble in Italian: 103 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 41 words


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