abscissae
n. C1 Advanced ab·scis·sae
n. the horizontal values on a graph that show where a point is located. It is the plural form of 'abscissa'.
n. the plural form of 'abscissa', referring to the horizontal coordinates in a Cartesian coordinate system.
The researcher plotted the abscissae against the corresponding data points.
When the scientist reviewed the graph, she noticed that the abscissae were not evenly spaced, which could affect the accuracy of the results.
The mathematical model required the abscissae to be normalized to ensure that the variables remained consistent across different scales of measurement.