List of 15-letter words containing

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There are 13 fifteen-letter words containing ROI

CORTICOSTEROIDS	• corticosteroids n. Plural of corticosteroid. • CORTICOSTEROID n. any of the steroid hormones produced in the adrenal cortex, also CORTICOID.
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.
HYPOTHYROIDISMS	• hypothyroidisms n. Plural of hypothyroidism. • HYPOTHYROIDISM n. deficient activity of the thyroid gland.
LEPIDODENDROIDS	• lepidodendroids n. Plural of lepidodendroid. • LEPIDODENDROID n. any of a genus of fossil trees.
MALADROITNESSES	• maladroitnesses n. Plural of maladroitness. • MALADROITNESS n. MALADROIT, (French) clumsy, unskilful.
MICROINJECTIONS	• microinjections n. Plural of microinjection. • MICROINJECTION n. an injection, e.g. into a single cell, performed under a microscope.
MICROMETEOROIDS	• micrometeoroids n. Plural of micrometeoroid. • MICROMETEOROID n. a small meteoroid.
SPHEROIDICITIES	• SPHEROIDICITY n. the state of being spheroid.
SPHEROIDISATION	• SPHEROIDISATION n. the process of spheroidising, also SPHEROIDIZATION.
SPHEROIDIZATION	• spheroidization n. The process of spheroidizing. • SPHEROIDIZATION n. the process of spheroidizing, also SPHEROIDISATION.
STEROIDOGENESES	• steroidogeneses n. Plural of steroidogenesis. • STEROIDOGENESIS n. the synthesis of steroids.
STEROIDOGENESIS	• steroidogenesis n. (Biochemistry) The process of steroid (hormone) production in living organisms. • STEROIDOGENESIS n. the synthesis of steroids.
THYROIDECTOMIES	• thyroidectomies n. Plural of thyroidectomy. • THYROIDECTOMY n. the surgical removal of the thyroid gland.

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: 141 words
Scrabble in French: 27 words
Scrabble in Spanish: 4 words
Scrabble in Italian: 58 words
Scrabble in German: no word
Scrabble in Romanian: 66 words

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