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There are 15 thirteen-letter words containing 2A, E, H, I, N, P and Y

ACTINOTHERAPYactinotherapy n. (Medicine) The treatment of disease, especially skin disease, by exposure to ultraviolet light; radiotherapy.
ACTINOTHERAPY n. the use of ultraviolet and other actinic rays in medical treatment.
ENHYPOSTASIASenhypostasias n. Plural of enhypostasia.
ENHYPOSTASIA n. personality not existing independently but by union with another, as the human nature of Christ was said to be dependent on his divine nature.
HYPERRATIONALhyperrational adj. Extremely rational.
HYPERRATIONAL adj. excessively rational.
HYPONATRAEMIAhyponatraemia n. Alternative spelling of hyponatremia.
hyponatræmia n. Alternative form of hyponatraemia.
HYPONATRAEMIA n. deficiency of sodium in the blood.
HYPONATRAEMIChyponatraemic adj. Alternative form of hyponatremic.
HYPONATREMIAShyponatremias n. Plural of hyponatremia.
METAPHYSICIANmetaphysician n. (Philosophy) A philosopher who specializes in the scholarly study of metaphysics.
METAPHYSICIAN n. a student of or specialist in metaphysics.
NAPHTHYLAMINEnaphthylamine n. (Organic chemistry) Either of two isomeric primary amines derived from naphthalene; they occur in crude…
NAPHTHYLAMINE n. either of two isomeric crystalline bases used esp. as dye intermediates.
PARASYNTHESISparasynthesis n. (Grammar) The formation of words by a combination of compounding and adding an affix, as in brown-eyed.
parasynthesis n. (Grammar) The formation of words in which the prefixing and the suffixing are involved simultaneously…
PARASYNTHESIS n. the derivation of words using hyphenated compounds.
PARASYNTHETICparasynthetic adj. (Grammar) Being a compound word formed by parasynthesis, i.e. by adding several affixes simultaneously…
PARASYNTHETIC adj. relating to parasynthesis.
PHENYLALANINEphenylalanine n. (Biochemistry) An essential amino acid C9H11NO2 found in most animal proteins; it is essential for growth;…
PHENYLALANINE n. an essential amino-acid present in most proteins, also PHENYLALANIN.
PHENYLALANINSPHENYLALANIN n. an essential amino acid present in most proteins, also PHENYLALANINE.
PSYCHASTHENIApsychasthenia n. (Dated) A psychological disorder characterized by phobias, obsessions, compulsions, or excessive anxiety.
PSYCHASTHENIA n. an incapacity to resolve doubts/uncertainties or to resist obsessions/compulsions that one knows are irrational.
STAPHYLINIDAEStaphylinidae prop.n. A taxonomic family within the order Coleoptera – rove beetles.
UNIMPEACHABLYunimpeachably adv. In an unimpeachable manner.
UNIMPEACHABLE adv. not impeachable.

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: 70 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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