tris

noun, often capitalized
\ ˈtris \

Medical Definition of tris

 (Entry 1 of 2)

: a white crystalline powder C4H11NO3 used as a buffer (as in the treatment of acidosis)

called also tris buffer, tromethamine

Tris

noun

Medical Definition of Tris (Entry 2 of 2)

: a phosphoric acid ester C9H15Br6O4P formerly used to flameproof clothes and especially children's nightclothes until it was found to cause cancer in animals

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