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abscissa

abscissa

1 9.9
The number showing a point's position along the horizontal axis on a graph
  • noun
  • /æbˈsɪsə/
  • Specialized
: abscisa
  • In the Cartesian plane, the abscissa represents the horizontal distance of a point from the origin.
  • abscissas and ordinates

Examples

  • The abscissa shows wavelength in nanometers; the ordinate shows transmittance, where 1.0 represents 100% transmitted light and 0 represents no transmitted light.

    Academic text (1992)
  • The abscissa shows duration in ms, and the ordinate shows movement distance.

    Academic text (2011)
  • The abscissa gives the trial number; the ordinate gives the auditory distance (in terms of numbers of stimuli along the continuum).

    Academic text (2011)
  • Total revenues and total costs are represented on the y-axis (the ordinate) and the number of units sold is represented on the x-axis (the abscissa).

    Academic text (2005)
  • For any coordinate point, the abscissa is the value you find on the x-axis.

  • When plotting the graph, the abscissa is labeled to indicate its value along the x-axis.

Surface Forms

abscissa singular
abscissas plural

Etymology

Abscissa comes from the Latin word abscissus, which means 'cut off' and is like the idea of cutting, as in scissors. In math it was used for a length 'cut off' on a line, so the abscissa is the horizontal distance, the x-value measured from the origin.