Black tuxedo jacket and matching trousers. Formal (piquÃ© or pleated front) white shirt. Shirt studs and cuff links. Black bow tie (silk, satin, or twill) Black cummerbund to match tie, or a vest. Dressy braces to ensure a good fit (optional) No gloves. Black patent shoes and black dress socks.
GCIDE(0.00 / 0 votes)Rate this definition: 1  Datum(n.) a single piece of information; a fact; especially a piece of information obtained by observation or experiment; -- used mostly in the plural. 2  Datum(n.) (Surveying) a point, line, or level surface used as a reference in measuring elevations. RHUD.
Based on the definition of datums presented in Workshop No. 5, datum A is the tangent plane on datum feature simulator A, datum B is the axis of datum feature simulator B, and datum C is the midplane of datum feature simulator C, as illustrated in figure 3. Figure 3.