In a spherical coordinate system for the earth, a direction perpendicular to the radial or vertical direction, tangential to a spherical surface about the center of the earth
A horizontal is a line or structure that is horizontal. The undulating planes of the countryside provide relief from the hard horizontals and verticals of the urban scene. flat and level
Bar Charts use bars which extend from left to right horizontally to illustrate the value of each bar These charts are typically used to compare the values from different segments relative to each other
Something that is horizontal is flat and level with the ground, rather than at an angle to it. The board consists of vertical and horizontal lines Horizontal is also a noun. Do not raise your left arm above the horizontal. + horizontally hori·zon·tal·ly The wind was cold and drove the snow at him almost horizontally
refers to the melodic aspect of music, the succession of notes one after the other in time, which is expressed horizontally in standard musical notation