the transporting of students by bus to schools outside their neighborhoods, especially as a means of achieving socioeconomic or racial diversity among students in a public school. Origin Expand 1885-90; bus 1 (v.) + -ing 1, spelled irregular with single s, perhaps to avoid association with buss
Translational symmetry of an object means that a particular translation does not change the object. For a given object, the translations for which this applies form a group, the symmetry group of the object, or, if the object has more kinds of symmetry, a subgroup of the symmetry group. 1 Geometry.
verb (used with object) 1. to send (a liquid, fluid, or anything in loose particles) flowing or falling, as from one container to another, or into, over, or on something: to pour a glass of milk; to pour water on a plant. to emit or propel, especially continuously or rapidly: The hunter poured bullets into the moving object.