List of 15-letter words containing •••••••

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There are 18 fifteen-letter words containing H, 2O, P, 2R, S and Y

AEROHYDROPLANES	• AEROHYDROPLANE n. a winged hydroplane or flying-boat.
ANDROGYNOPHORES	• androgynophores n. Plural of androgynophore. • ANDROGYNOPHORE n. another name for the androphore, a support or column on which stamens are raised.
ERYTHROPOIETINS	• erythropoietins n. Plural of erythropoietin. • ERYTHROPOIETIN n. a glycoprotein hormone that stimulates the production of red blood cells by stem cells in bone marrow.
HYDROSULPHUROUS	• HYDROSULPHUROUS adj. as in hydrosulphurous acid.
HYDROXYPROLINES	• hydroxyprolines n. Plural of hydroxyproline. • HYDROXYPROLINE n. an amino acid.
HYPOMENORRHOEAS	• hypomenorrhoeas n. Plural of hypomenorrhoea. • HYPOMENORRHOEA n. the condition in which the interval between two menstrual periods is increased to between 35 and 42 days, also HYPOMENORRHEA.
HYSTRICOMORPHIC	• HYSTRICOMORPHIC adj. belonging to the rodent suborder Hystricomorpha, which includes porcupines, cavies, agoutis, and chinchillas.
MICROSPOROPHYLL	• microsporophyll n. A leaflike organ that bears one or more microsporangia (contrast megasporophyll or macrosporophyll). • MICROSPOROPHYLL n. a specialised leaf bearing or subtending one or more microsporangia.
MYOCARDIOGRAPHS	• MYOCARDIOGRAPH n. an instrument for recording the movements of heart muscle.
ORTHOPSYCHIATRY	• orthopsychiatry n. (Psychiatry) branch of psychiatry concerned with the prevention of mental illness, especially in the young. • ORTHOPSYCHIATRY n. preventive psychiatry for young people.
PORPHYROGENITES	• porphyrogenites n. Plural of porphyrogenite. • PORPHYROGENITE n. a Byzantine emperor's son, born in the purple.
PROTOPORPHYRINS	• protoporphyrins n. Plural of protoporphyrin. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin.
PYROPHOTOGRAPHS	• PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain.
PYROPHOTOMETERS	• PYROPHOTOMETER n. a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits.
RHOMBENPORPHYRS	• RHOMBENPORPHYR n. an intermediate, moderately fine-grained igneous rock with feldspar phenocrysts rhombic in section, also RHOMBENPORPHYRY, RHOMBPORPHYRY.
RHOMBPORPHYRIES	• RHOMBPORPHYRY n. an intermediate, moderately fine-grained igneous rock with feldspar inclusions, also RHOMBENPORPHYR, RHOMBENPORPHYRY.
SEMIPORNOGRAPHY	• semipornography n. Material that is partly or somewhat pornographic. • SEMIPORNOGRAPHY n. material approaching the pornographic.
ULTRASONOGRAPHY	• ultrasonography n. (Medicine) The use of ultrasound to produce diagnostic images of the internal organs of the body, or of a foetus. • ultrasonography n. The use of ultrasound to form images of underwater structures. • ULTRASONOGRAPHY n. the use of ultrasound.

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 1Word.ws and WikWik.org.

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English Wiktionary: 104 words
Scrabble in French: 13 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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