List of 9-letter words ending with

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There are 7 nine-letter words ending with OIN

ALLANTOIN	• allantoin n. (Biochemistry) A diureide of glyoxylic acid, used in various pharmaceutical and cosmetic products; or… • ALLANTOIN n. a crystalline base formed in the nitrogen metabolism of many mammals (excluding primates).
HYDANTOIN	• hydantoin n. (Organic chemistry) The heterocycle imidazolidine-2,4-dione derived from urea and glycolic acid; any… • HYDANTOIN n. a colourless odourless crystalline compound found in beet molasses and used in the manufacture of pharmaceuticals.
INTERJOIN	• interjoin v. (Mathematics) To interconnect two sets. • interjoin v. (Transitive, intransitive) To join mutually; to unite. • interjoin v. To say by way of interruption, to interject.
PHENYTOIN	• phenytoin n. (Pharmacology) A synthetic compound related to hydantoin, used as an anticonvulsant in the treatment of epilepsy. • PHENYTOIN n. a crystalline anticonvulsant compound.
SAINTFOIN	• saintfoin n. Dated form of sainfoin. • SAINTFOIN n. (French) a leguminous plant, used as fodder, also SAINFOIN.
SURREJOIN	• surrejoin v. To reply with or in a surrejoinder. • SURREJOIN v. to reply, as a plaintiff to a defendant's rejoinder.
TRETINOIN	• tretinoin n. (Pharmacology) The all-trans isomer of retinoic acid that is applied to the skin to treat severe acne… • TRETINOIN n. a synthetic form of vitamin A used as a drug to treat certain skin conditions.

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: 25 words
Scrabble in French: no word
Scrabble in Spanish: no word
Scrabble in Italian: no word
Scrabble in German: no word
Scrabble in Romanian: no word

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