]> Description of the form of an object Curve in space tracing the points successivley occupied by a particle in motion Altitude A measure (or condition) of height, especially of great height, as a mountain top or aircraft flight level. The vertical distance above mean sea level of the ground at the meteorological station. In topography, prominence, also known as autonomous height, relative height or shoulder drop (in America) or prime factor (in Europe), is a concept used in the categorization of hills and mountains, also known as peaks. It is a measure of the independent stature of a summit.