RICHLAND, Wash. â Cultured human lung cells infected with a benign version of anthrax spores have yielded insights into how anthrax grows and spreads in exposed people.
Photo Â© Lisa Taylor. Definition: Balustrade is a decorative railing supported by baluster posts. A baluster is the single, vertical post that can be made of wood, iron, or other material; the balustrade is several balusters spaced evenly and connected together. baluster is the single, vertical post that can be made of wood, iron, or other material; the balustrade is several balusters spaced evenly and connected together.
A collective term which refers to the balusters and handrail on a particular stairway. Bowed Tread. A tread that bows/curves out in front. A quality bowed tread would also bow the riser beneath it. Typically, bowed treads start at the beginning of the stair and may bow one to three treads.