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There are 13 thirteen-letter words containing E, H, 3O, P and 2T

HOMOEOPATHISThomoeopathist n. Alternative form of homeopathist.
homœopathist n. Obsolete form of homeopathist.
HOMOEOPATHIST n. one who practises homoeopathy, also HOMEOPATH, HOMEOPATHIST, HOMOEOPATH.
IONTOPHORETICiontophoretic adj. Of or pertaining to iontophoresis.
IONTOPHORETIC adj. relating to iontophoresis.
ORTHOPTEROIDSorthopteroids n. Plural of orthopteroid.
ORTHOPTEROID n. a member of the Orthoptera, cockroaches.
PHOTOCATHODESphotocathodes n. Plural of photocathode.
PHOTOCATHODE n. a cathode that emits electrons when exposed to radiant energy and esp. light.
PHOTODETECTORphotodetector n. Any device used to detect electromagnetic radiation.
PHOTODETECTOR n. any of various devices for detecting and measuring the intensity of radiant energy through photoelectric action.
PHOTOELECTRONphotoelectron n. (Physics) An electron ejected from the surface of a material by the photoelectric effect.
PHOTOELECTRON n. an electron released from a surface by a photon.
PHOTOMONTAGESphotomontages n. Plural of photomontage.
PHOTOMONTAGE n. montage using photographic images.
PHOTONEUTRONSphotoneutrons n. Plural of photoneutron.
PHOTONEUTRON n. a neutron emitted from a nucleus as a result of photodisintegration.
PHOTOPOSITIVEphotopositive adj. (Biology) having a positive phototropic or phototactic response; attracted by light.
PHOTOPOSITIVE adj. exhibiting positive phototropism or phototaxis.
PHOTOREACTIONphotoreaction n. (Chemistry) a photochemical reaction.
PHOTOREACTION n. a photochemical reaction.
PHOTORECEPTORphotoreceptor n. (Biology) A specialized neuron or other structure able to detect and react to light.
PHOTORECEPTOR n. a receptor for light stimuli.
PROTOCHORDATEprotochordate n. Any chordate of the phyla Hemichordata, Urochordata or Cephalochordata.
PROTOCHORDATE n. a member of the Protochordata.
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: 63 words
  • Scrabble in French: 12 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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