abscissa
/æbˈsɪs.ə/
noun 2
Definitions
noun
1
The first of the two terms by which a point is referred to, in a system of fixed rectilinear coordinate (Cartesian coordinate) axes.
The point (3,2) has 3 as its abscissa and 2 as its ordinate.
2
The horizontal line representing an axis of a Cartesian coordinate system, on which the abscissa (sense above) is shown.
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