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

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There are 15 fifteen-letter words containing H, 2I, O, 2R and Y

BIOSTRATIGRAPHY	• biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain.
CINEMICROGRAPHY	• cinemicrography n. Alternative form of cinephotomicrography. • CINEMICROGRAPHY n. cinematographic recording of changes under the microscope.
CRYPTORCHIDISMS	• cryptorchidisms n. Plural of cryptorchidism. • CRYPTORCHIDISM n. the condition in which one or both testes do not descend normally, also CRYPTORCHISM.
EPICHLOROHYDRIN	• epichlorohydrin n. (Chemistry) Any epihalohydrin in which the halogen is chlorine. • EPICHLOROHYDRIN n. a volatile liquid toxic epoxide used esp. in making epoxy resins and rubbers.
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.
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.
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.
HYSTRICOMORPHIC	• HYSTRICOMORPHIC adj. belonging to the rodent suborder Hystricomorpha, which includes porcupines, cavies, agoutis, and chinchillas.
POLYARTHRITIDES	• polyarthritides n. Plural of polyarthritis. • POLYARTHRITIS n. arthritis affecting several joints.
POLYARTHRITISES	• POLYARTHRITIS n. arthritis affecting several joints.
PREHISTORICALLY	• prehistorically adv. In a prehistoric manner. • prehistorically adv. Regarding prehistory. • PREHISTORICAL adv. relating to the time before historical records, also PREHISTORIC.
PSYCHOGERIATRIC	• psychogeriatric adj. Relating to psychogeriatrics. • PSYCHOGERIATRIC adj. relating to the study of the psychological problems of old age.
RESYNCHRONISING	• resynchronising v. Present participle of resynchronise. • RESYNCHRONISE v. to synchronise again, also RESYNCHRONIZE.
RESYNCHRONIZING	• resynchronizing v. Present participle of resynchronize. • RESYNCHRONIZE v. to synchronise again, also RESYNCHRONISE.

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: 150 words
Scrabble in French: 22 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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