List of 10-letter words containing ••••••

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There are 12 ten-letter words containing H, I, O, P, 2R and Y

PORPHYRIAS	• porphyrias n. Plural of porphyria. • PORPHYRIA n. any of various disorders of metabolism resulting in the excretion of an excessive quantity of porphyrins in the urine.
PORPHYRIES	• porphyries n. Plural of porphyry. • PORPHYRY n. (Greek) a very hard, variegated rock of a purple and white colour, used in sculpture.
PORPHYRINS	• porphyrins n. Plural of porphyrin. • PORPHYRIN n. any of a large group of red or purple crystalline pigments present in plant and animal tissues.
PORPHYRIOS	• porphyrios n. Plural of porphyrio. • PORPHYRIO n. any bird of the purple-coot genus Porphyrio.
PORPHYRITE	• porphyrite n. A rock with a porphyritic structure. • PORPHYRITE n. a rock with a porphyritic structure; as, augite porphyrite.
PORPHYROID	• porphyroid n. (Mineralogy) A crystalline and schistose rock containing porphyritic crystals of feldspar. • PORPHYROID n. a metamorphic rock having a texture characterized by large crystals set in a finer groundmass.
PREHISTORY	• prehistory n. The time before written records in any area of the world; the events and conditions of those times. • prehistory n. The study of those times. • prehistory n. (Humorous, hyperbolic) Any past time (even recent) treated as such a distant, unknowable era.
PYORRHOEIC	• pyorrhoeic adj. Alternative form of pyorrheic. • pyorrhœic adj. Obsolete form of pyorrheic. • PYORRHOEIC adj. relating to pyorrhoea, suppuration in the sockets of the teeth, also PYORRHEAL, PYORRHEIC, PYORRHOEAL.
PYRETHROID	• pyrethroid n. (Organic chemistry) Any of several synthetic insecticides having a structure based on pyrethrin. • PYRETHROID n. any of various synthetic compounds related to the pyrethrins, and sharing their insecticidal properties.
PYROPHORIC	• pyrophoric adj. Spontaneously igniting in air, especially when in a finely divided state. • pyrophoric adj. Producing sparks, especially by friction. • pyrophoric adj. (Fire investigation) Able to oxidize with exposure to atmospheric oxygen at normal temperatures.
PYRRHOTINE	• pyrrhotine n. (Mineralogy) pyrrhotite. • PYRRHOTINE n. magnetic pyrites, an iron sulphide, often containing nickel, also PYRRHOTITE.
PYRRHOTITE	• pyrrhotite n. (Mineralogy) A weakly magnetic ferrous sulfide mineral, FeS. • PYRRHOTITE n. magnetic pyrites, an iron sulphide, often containing nickel, also PYRRHOTINE.

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: 37 words
Scrabble in French: 4 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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