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Definition 2024
tris-
tris-
English
Prefix
tris-
- (chemistry, obsolete) A variant of tri- used to indicate that the component that does not take the prefix occurs three times in the compound: trisphosphuret of copper is PCu3; trisbenzeneazoresorcinol, C6H(OH)2(N2Ph)3.
- (chemistry) A variant of tri-, used for substitutions of three complex rather than simple units, as in,
- trisbenzene-azophenol, C6H2(N:NC6H5)3OH
- tristhio-dimethyl-benzaldehyde, {C6H3(CH3)2CHS}3