1. Plural of abscissa; the x-coordinates of points in a coordinate system, measured horizontally from the origin.
Usage: mathematics; technical

Examples

• In the graph, the abscissae of the plotted points range from 0 to 10.
• The teacher asked students to identify the abscissae and ordinates of each vertex.
• When analyzing the data, we recorded the abscissae on the horizontal axis.
• The abscissae represent time in seconds for this physics experiment.
• To find the intersection, we need to compare the abscissae of both curves.