==In parametric equations== In a somewhat obsolete variant usage, the abscissa of a point may also refer to any number that describes the point`s location along some path, e.g. the parameter of a parametric equation. Used in this way, the abscissa can be thought of as a coordinate-geometry analog to the independent variable in a mathematical mode....

Found on http://en.wikipedia.org/wiki/Abscissa

• (n.) One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coordinate axes.

Found on http://thinkexist.com/dictionary/meaning/abscissa/

<geometry> One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coordinate axes. ... When referred to two intersecting axes, one of them called the axis of abscissas, or of X, and the other the axis of ordinates, or of Y, the abscissa of the point is the distance cut off from the axis ...

Found on http://www.encyclo.co.uk/local/20973

(ab-sis´ә) 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.

Found on http://www.encyclo.co.uk/local/21001

*noun* the value of a coordinate on the horizontal axis

Found on https://www.encyclo.co.uk/local/20974

**Ab·scis'sa** * noun* ; E. plural

** Abscissas** , Latin plural

** Abscissæ** . [ Latin , fem. of

* abscissus* , past participle of

* absindere* to cut of. See

__ Abscind__ .]

* (Geom.)* One of the elements of reference by which a point, as of a curve, is referred to a system of fixed re...

Found on http://www.encyclo.co.uk/webster/A/8

abscissa: see Cartesian coordinates.

Found on http://www.infoplease.com/ce6/sci/A0909859.html

horizontal distance from a fixed line to a point

Found on http://phrontistery.info/a.html

In co-ordinate geometry, the abscissa is the x-coordinate of a point (the horizontal distance of that point from the vertical or y-axis). For example, a point with the coordinates (9, 6) has an abscissa of 9.

Found on http://www.probertencyclopaedia.com/browse/AA.HTM

In coordinate geometry, the

*x*-coordinate of a point – that is, the horizontal distance of that point from the vertical or

*y*-axis. For example, a point with the coordinates (4, 3) has an abscissa of 4. The

*y*-coordinate of a poin...

Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0035738.html

the name given to the horizontal axis in a set of two-dimensional coordinates. Commonly referred to as the x-axis.

Found on http://www.chemistry-dictionary.com/definition/abscissa.php

The x coordinate on an (x, y) graph. The input of a function against which the output is plotted. y is the ordinate.The sign convention is that measurements to the right from the axis of ordinates are positive, measurements to the left negative. See also: Ordinate.

Found on http://www.diracdelta.co.uk/science/source/a/b/abscissa/source.html

The x-coordinate, or horizontal distance from the y-axis, in a system of Cartesian coordinates. Compare with ordinate.

Found on http://www.daviddarling.info/encyclopedia/A/abscissa.html

Type: Term Pronunciation: ab-sis′ă Definitions: 1. In a plane cartesian coordinate system, the horizontal axis (x).

Found on http://www.medilexicon.com/medicaldictionary.php?t=288

[

*n]* - the value of a coordinate on the horizontal axis

Found on http://www.webdictionary.co.uk/definition.php?query=abscissa

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