There are 2 definitions of tris in English:

tris1

Line breaks: tris
Pronunciation: /trɪs
 
/
(also tris buffer)

noun

[mass noun]
  • A flammable compound which forms a corrosive solution in water and is used as a buffer and emulsifying agent.
    • Alternative name: trishydroxymethylaminomethane; chemical formula: (HOCH2)3CNH2
    More example sentences
    • After incubation for half an hour, the sections were rinsed with tris buffer, peroxidase solution was added, incubated for 30 min and later rinsed with the buffer.
    • Fourth, under certain conditions, such as supported multibilayers or a supported bilayer prepared in tris buffer, lipid bilayers can form ripple phases.
    • Nonspecific sites were blocked with blocking solution containing 20 mM tris base, 150 mM sodium chloride, 3% nonfat milk, and 0.3% Tween 20 for 1 h at room temperature.

Origin

1950s: from tris-, the prefix of the systematic name.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody

There are 2 definitions of tris in English:

tris2

Line breaks: tris
Pronunciation: /trɪs
 
/

noun

[mass noun]
  • An organophosphorus compound, used as a flame retardant.
    • Alternative name: tris-2,3-dibromopropylphosphate; chemical formula: (Br2C3H5)3PO4
    More example sentences
    • We illustrate our approach through application to data from a study of mutation induction in lacI transgenic mice after exposure to the flame retardant tris (2,3-dibromopropyl) phosphate.
    • Another flame retardant, tris-(1,3-dichloro-2-propyl)-phosphate, and its expected metabolites are mutagens.
    • The flame retardant, tris(2,3-dibromopropyl)phosphate (tris-BP), which is a mutagen and causes cancer and sterility in animals is absorbed from fabric by people.

Origin

1970s: from tris-, the prefix of the systematic name.

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