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

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There are 17 fifteen-letter words containing H, M, O, 2R, S and Y

ARCHEOASTRONOMY	• archeoastronomy n. Alternative spelling of archaeastronomy. • ARCHEOASTRONOMY n. the scientific study of the beliefs and practices concerning astronomy that existed in ancient and prehistoric civilizations.
CRYPTORCHIDISMS	• cryptorchidisms n. Plural of cryptorchidism. • CRYPTORCHIDISM n. the condition in which one or both testes do not descend normally, also CRYPTORCHISM.
ECTOMYCORRHIZAS	• ectomycorrhizas n. Plural of ectomycorrhiza. • ECTOMYCORRHIZA n. a type of mycorrhiza in which the fungus forms a layer on the outside of the roots of the plant.
HYPERMODERNISMS	• HYPERMODERNISM n. a hypermodern approach or theory.
HYPERMODERNISTS	• hypermodernists n. Plural of hypermodernist. • HYPERMODERNIST n. a practitioner of a hypermodernist style in art.
HYPERTHYROIDISM	• hyperthyroidism n. (Medicine) The excessive production of hormones by the thyroid. • hyperthyroidism n. (Pathology) The pathological condition resulting from these excess hormones. • HYPERTHYROIDISM n. excessive functional activity of the thyroid gland.
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.
PSYCHROMETRICAL	• psychrometrical adj. Psychrometric. • PSYCHROMETRICAL adj. relating to measurement by psychrometer, also PSYCHOMETRIC, PSYCHOMETRICAL, PSYCHROMETRIC.
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.
STEREOCHEMISTRY	• stereochemistry n. (Chemistry, uncountable) the branch of chemistry that involves the spatial arrangement of the atoms… • stereochemistry n. (Chemistry, countable) the effect of such spatial arrangement on the chemistry of a particular compound. • STEREOCHEMISTRY n. chemical study of arrangement of molecules and atoms.
THERMOCHEMISTRY	• thermochemistry n. (Chemistry, physics) The study of the thermodynamics of chemical reactions. • THERMOCHEMISTRY n. a branch of chemistry that deals with the interrelation of heat with chemical reaction or physical change of state.

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: 123 words
Scrabble in French: 6 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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