# abscissa

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Related to abscissae: ordinate

## abscissa

[ab-sis´ah]
the horizontal line in a graph along which are plotted the units of one of the variables considered in the study, as time in a time-temperature study. The other line is called the ordinate.
Axes of graph showing normal distribution curve.

## ab·scis·sa

(ab-sis'ă),
In a plane cartesian coordinate system, the horizontal axis (x). Compare: ordinate.
[L. ab-scindo, pp. -scissus, to cut away from]

## abscissa

/ab·scis·sa/ (ab-sis´ah) the horizontal line in a graph along which are plotted the units of one of the factors considered in the study. Symbol .

## abscissa

[absis′ə]
Etymology: L, ab, away; scindere, to cut
a point on a horizontal Cartesian coordinate plane measured from the y-axis (or vertical axis) running perpendicular to the plane, or the x-axis.

## ab·scis·sa

(ab-sis'ă)
In a plane cartesian coordinate system, the horizontal axis (x).
[L. ab-scindo, pp. -scissus, to cut away from]

## abscissa

the horizontal line in a graph along which are plotted the units of one of the factors considered in the study, as time in a time-temperature study. The other line is called the ordinate.
References in periodicals archive ?
Our approach can fail only if no set of m collocation abscissae can be found that results in a nonsingular matrix W.
Before discussing how to select the m collocation abscissae it is instructive to determine the maximum number of independent linear equations one can obtain using only the collocation constraints (9).
Figures 5 and 6 refer to the first series of tests (cycle of equal mixing time) and they reproduce the temperature and power charts with the usual reference scales: on the abscissae (1 cm = 30 secs) and on the ordinates (1 cm = 25 [degrees] C and 200 kW).

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