A vaporization electrode configured for attachment to a feed conductor of an electrosurgical device, the electrode comprising: an axis ; a non-smooth semispherical shape defined by a functional surface converging toward an apex surface of the functional surface on the axis , the functional surface having a plurality of individual surfaces that intersect each other to define edges therebetween; and a base oppositely disposed from the functional surface and the apex surface thereof, parallel to the apex surface , and perpendicular to the axis ; wherein the plurality of individual surfaces comprise: planar surfaces that are perpendicular to the axis and face away from the base and cylindrical surfaces that are parallel to the axis and face radially outward from the axis , the planar surfaces and the cylindrical surfaces being arranged in concentric annular-shaped tiers so that each cylindrical surface surrounds and intersects one of the planar surfaces to define therebetween one of the edges of the functional surface ; or multiple planar facets that are arranged to define multiple concentric tiers , adjacent pairs of the facets intersecting to define the edges of the functional surface , the edges being entirely linear and being sized and shaped so that the tiers converge toward the apex surface ; the electrode being configured to attach the feed conductor at the base to provide energy to the functional surface and distribute the energy from the functional surface over a semispherical area. an axis ; a non-smooth semispherical shape defined by a functional surface converging toward an apex surface of the functional surface on the axis , the functional surface having a plurality of individual surfaces that intersect each other to define edges therebetween; and a base oppositely disposed from the functional surface and the apex surface thereof, parallel to the apex surface , and perpendicular to the axis ; wherein the plurality of individual surfaces comprise: planar surfaces that are perpendicular to the axis and face away from the base and cylindrical surfaces that are parallel to the axis and face radially outward from the axis , the planar surfaces and the cylindrical surfaces being arranged in concentric annular-shaped tiers so that each cylindrical surface surrounds and intersects one of the planar surfaces to define therebetween one of the edges of the functional surface ; or multiple planar facets that are arranged to define multiple concentric tiers , adjacent pairs of the facets intersecting to define the edges of the functional surface , the edges being entirely linear and being sized and shaped so that the tiers converge toward the apex surface ; the electrode being configured to attach the feed conductor at the base to provide energy to the functional surface and distribute the energy from the functional surface over a semispherical area. planar surfaces that are perpendicular to the axis and face away from the base and cylindrical surfaces that are parallel to the axis and face radially outward from the axis , the planar surfaces and the cylindrical surfaces being arranged in concentric annular-shaped tiers so that each cylindrical surface surrounds and intersects one of the planar surfaces to define therebetween one of the edges of the functional surface ; or multiple planar facets that are arranged to define multiple concentric tiers , adjacent pairs of the facets intersecting to define the edges of the functional surface , the edges being entirely linear and being sized and shaped so that the tiers converge toward the apex surface ; the electrode being configured to attach the feed conductor at the base to provide energy to the functional surface and distribute the energy from the functional surface over a semispherical area. <EOS>