Definitions
1.NounA set of three, particularly
2.NounA group of three notes of even rhythm played or written where two of those notes would ordinarily be; a form of tuplet.
3.NounA triquark.
4.NounA quantum state with three allowed projections for the spin.
5.NounA constructed gem consisting of a thin slice of natural opal sandwiched between a clear glass or quartz top and a synthetic or stone backing that enhances the colour of the opal.
6.NounOne of a group of three, particularly
One of a group of three siblings born at the same time to the same mother.
7.NounOne of a group of three siblings born at the same time to the same mother.