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There are 9 nine-letter words containing PHTH

DIPHTHONGdiphthong n. (Phonetics) A complex vowel sound that begins with the sound of one vowel and ends with the sound of…
diphthong n. (Rare) A vowel digraph or ligature.
DIPHTHONG n. a union of two vowels pronounced in one syllable.
NAPHTHENEnaphthene n. (Organic chemistry) Any cycloalkane (or alkyl derivative).
NAPHTHENE n. a peculiar hydrocarbon occurring as an ingredient of Caucasian petroleum.
NAPHTHOLSnaphthols n. Plural of naphthol.
NAPHTHOL n. any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol, also NAPHTOL.
NAPHTHOUSNAPHTHOUS adj. containing naphtha.
NAPHTHYLSnaphthyls n. Plural of naphthyl.
NAPHTHYL n. a radical derived from naphthalene.
PHTHALATEphthalate n. (Organic chemistry) Any salt or ester of a phthalic acid.
PHTHALATE n. a salt of phthalic acid.
PHTHALEINphthalein n. (Organic chemistry) any of a range of lactones formed by the reaction of phenols with phthalic anhydride.
PHTHALEIN n. any one of a very important class of dye-yielding materials formed by the union of phenols with phthalic anhydride.
PHTHALINSphthalins n. Plural of phthalin.
PHTHALIN n. a colourless crystalline compound obtained by reducing a phthalein.
PHTHISICSphthisics n. Plural of phthisic.
PHTHISIC n. a disease of the lungs, also PHTHISIS.

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: 22 words
  • Scrabble in French: no word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: 3 words
  • Scrabble in Romanian: no word


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