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

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

CYPROHEPTADINES	• cyproheptadines n. Plural of cyproheptadine. • CYPROHEPTADINE n. a powerful antihistamine drug used to treat allergies.
ENCEPHALOGRAPHY	• encephalography n. (Medicine) An X-ray examination of the brain in which air replaces some of the cerebrospinal fluid to… • ENCEPHALOGRAPHY n. radiography of the brain after the cerebrospinal fluid has been replaced by a gas (as air).
HEMATOPORPHYRIN	• hematoporphyrin n. (Biochemistry) The porphyrin portion of heme (minus the iron atom). • HEMATOPORPHYRIN n. any of several porphyrins that are hydrated derivatives of protoporphyrins.
HYPERPOLARISING	• hyperpolarising v. Present participle of hyperpolarise. • HYPERPOLARISE v. to increase the difference in electric potential across a cell membrane, also HYPERPOLARIZE.
HYPERPOLARIZING	• hyperpolarizing v. Present participle of hyperpolarize. • HYPERPOLARIZE v. to produce an increase in potential difference across a biological membrane, also HYPERPOLARISE.
HYPERPRODUCTION	• hyperproduction n. Excessive production. • HYPERPRODUCTION n. excessive production.
HYPERRESPONSIVE	• hyperresponsive adj. Involving an abnormally high degree of responsiveness. • HYPERRESPONSIVE adj. excessively responsive.
HYPNOTHERAPISTS	• hypnotherapists n. Plural of hypnotherapist. • HYPNOTHERAPIST n. one who practises hypnotherapy.
NEUROHYPOPHYSES	• neurohypophyses n. Plural of neurohypophysis. • NEUROHYPOPHYSIS n. the portion of the pituitary gland that is composed of the infundibulum and posterior lobe and is concerned with the secretion of various hormones.
NEUROHYPOPHYSIS	• neurohypophysis n. (Anatomy) The posterior lobe of the pituitary gland, responsible for the release of oxytocin and antidiuretic… • NEUROHYPOPHYSIS n. the portion of the pituitary gland that is composed of the infundibulum and posterior lobe and is concerned with the secretion of various hormones.
PALAEONTOGRAPHY	• palaeontography n. The description of fossil remains in scientific literature. • palaeontography n. The representation of forms of life represented by fossil remains. • PALAEONTOGRAPHY n. descriptive palaeontology, the description of fossil remains.
PHARYNGOSCOPIES	• pharyngoscopies n. Plural of pharyngoscopy. • PHARYNGOSCOPY n. examination of the pharynx.
POLYCHLOROPRENE	• polychloroprene n. (Organic chemistry) A polymer of chloroprene. • POLYCHLOROPRENE n. neoprene.
PORPHYROGENITES	• porphyrogenites n. Plural of porphyrogenite. • PORPHYROGENITE n. a Byzantine emperor's son, born in the purple.
RHOMBENPORPHYRS	• RHOMBENPORPHYR n. an intermediate, moderately fine-grained igneous rock with feldspar phenocrysts rhombic in section, also RHOMBENPORPHYRY, RHOMBPORPHYRY.
RHOMBENPORPHYRY	• RHOMBENPORPHYRY n. an intermediate, moderately fine-grained igneous rock with feldspar inclusions, also RHOMBENPORPHYR, RHOMBPORPHYRY.
SEMIPORNOGRAPHY	• semipornography n. Material that is partly or somewhat pornographic. • SEMIPORNOGRAPHY n. material approaching the pornographic.
SULPHINPYRAZONE	• sulphinpyrazone n. Alternative form of sulfinpyrazone. • SULPHINPYRAZONE n. a drug used to treat gout.

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: 139 words
Scrabble in French: 14 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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