noun (plural abscissae /abˈsɪsiː/ or abscissas)Mathematics
(In a system of coordinates) the distance from a point to the vertical or y-axis, measured parallel to the horizontal or x-axis; the x-coordinate. Compare with ordinate.
- Open and closed time histograms were plotted using a logarithmic abscissa and a square root ordinate and fitted to the sum of exponential functions by maximal likelihood using the program TACFit (Bruxton Corporation, Seattle, WA).
- That is to say, the intercepts on the abscissa and the ordinate should be higher for isocline 2 at x = 1.
- Plotted on the abscissa of the graph are the incompatibility values or the proportions of informative sites incompatible with the particular clade in the set of artificially generated sequences.
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