The Open Dictionary

abscissa

noun

UK/æbˈsɪs.ə/
US/æbˈsɪs.ə/

Definitions of abscissa noun

  1. Countablemathematics

    In a Cartesian coordinate system, the abscissa is the numerical value that represents the position of a point on the horizontal axis (X-axis).

    • The abscissa of the point (3, 5) is 3.

    • When plotting graphs, the abscissa typically represents the independent variable.

    • We need to determine the abscissa of each point on the graph.