List of 13-letter words containing ••••

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There are 17 thirteen-letter words containing A, H, P, T and X

ARCHAEOPTERYX	• archaeopteryx n. Alternative spelling of archeopteryx. • Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the… • archæopteryx n. Rare spelling of archeopteryx.
ASPHYXIATIONS	• asphyxiations n. Plural of asphyxiation. • ASPHYXIATION n. the act of asphyxiation.
CEPHALOTHORAX	• cephalothorax n. The fused head and thorax of spiders and crustaceans. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc.
EXOPHTHALMIAS	• exophthalmias n. Plural of exophthalmia. • EXOPHTHALMIA n. a protrusion of the eyeballs.
HYPOXANTHINES	• hypoxanthines n. Plural of hypoxanthine. • HYPOXANTHINE n. a purine base found in plant and animal tissues that yields xanthine on oxidation.
LITHOLAPAXIES	• litholapaxies n. Plural of litholapaxy. • LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out.
PHYCOXANTHINS	• PHYCOXANTHIN n. a yellow pigment found in diatoms, brown seaweeds etc.
TACHYPHYLAXES	• tachyphylaxes n. Plural of tachyphylaxis. • TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.
TACHYPHYLAXIS	• tachyphylaxis n. (Medicine) A rapidly decreasing response to a drug following administration of the initial doses. • TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.
TOXICOPHAGOUS	• TOXICOPHAGOUS adj. eating poison, also TOXIPHAGOUS.
TOXICOPHOBIAS	• TOXICOPHOBIA n. the morbid fear of poisoning, also TOXIPHOBIA.
XANTHOPTERINE	• xanthopterine n. Alternative form of xanthopterin. • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN.
XANTHOPTERINS	• xanthopterins n. Plural of xanthopterin. • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE.
XEROPHTHALMIA	• xerophthalmia n. (Ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become… • XEROPHTHALMIA n. extreme dryness of the conjunctive, thought to stem from a vitamin A deficiency, also XEROMA.
XEROPHTHALMIC	• xerophthalmic adj. Of or pertaining to xerophthalmia. • XEROPHTHALMIC adj. relating to xerophthalmia.
XIPHIPLASTRAL	• xiphiplastral adj. Relating to a xiphiplastron. • XIPHIPLASTRAL n. a type of chelonian.
XIPHIPLASTRON	• xiphiplastron n. The posterior, or fourth lateral plate in the plastron of a turtle. • XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron.

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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English Wiktionary: 128 words
Scrabble in French: 17 words
Scrabble in Spanish: no word
Scrabble in Italian: 1 word
Scrabble in German: no word
Scrabble in Romanian: 2 words

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