|—n , pl -scissas, -scissae|
|Compare ordinate the horizontal or x-coordinate of a point in a two-dimensional system of Cartesian coordinates. It is the distance from the y-axis measured parallel to the x-axis|
|[C17: New Latin, originally linea abscissa a cut-off line]|
|abscissa (āb-sĭs'ə) Pronunciation Key
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Plural abscissas or abscissae (āb-sĭs'ē)
The distance of a point from the y-axis on a graph in the Cartesian coordinate system. It is measured parallel to the x-axis. For example, a point having coordinates (2,3) has 2 as its abscissa. Compare ordinate.