Abscissae
Abscissa Ab*scis"sa, n.; E. pl. {Abscissas}, L. pl. {Absciss[ae]}. [L., fem. of abscissus, p. p. 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 rectilineal co["o]rdinate axes.

Note: 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 of X by a line drawn through it and parallel to the axis of Y. When a point in space is referred to three axes having a common intersection, the abscissa may be the distance measured parallel to either of them, from the point to the plane of the other two axes. Abscissas and ordinates taken together are called co["o]rdinates. -- OX or PY is the abscissa of the point P of the curve, OY or PX its ordinate, the intersecting lines OX and OY being the axes of abscissas and ordinates respectively, and the point O their origin. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • abscissae — æbsɪsÉ™ n. distance of a coordinate from the the vertical axis (y axis) of a graph measured on a line which is parallel to the horizontal axis (x axis) …   English contemporary dictionary

  • abscissa — noun (plural abscissas; also abscissae) Etymology: New Latin, from Latin, feminine of abscissus, past participle of abscindere to cut off, from ab + scindere to cut more at shed Date: 1694 the horizontal coordinate of a point in a plane …   New Collegiate Dictionary

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  • abscissa — /ab sis euh/, n., pl. abscissas, abscissae / sis ee/. Math. (in plane Cartesian coordinates) the x coordinate of a point: its distance from the y axis measured parallel to the x axis. Cf. ordinate. [1690 1700; fem. of L abscissus (ptp. of… …   Universalium

  • ACHAEAE Petrae — rupes abscissae eius montis, ex quo Iordanus effluit, super quibus Samos civitas condita est. Strabo, l. 8 …   Hofmann J. Lexicon universale

  • COMA — olim libertatis insigne, apud Gallos praesertim: unde Regalis capillitii ius priscis Francis, adeo celebre, apud Hottomannum, Francogalliae, c. 9. Aimoinum, de Gestis Francorum, l. 3. c. 61. etc. Certe omnes Galliae Reges usque ad Pippinum Caroli …   Hofmann J. Lexicon universale

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  • abscissa — [ab sɪsə] noun (plural abscissae si: or abscissas) Mathematics the distance from a point on a graph to the vertical or y axis; the x coordinate. Compare with ordinate. Origin C17: from mod. L. abscissa (linea) cut off (line) , feminine past… …   English new terms dictionary

  • abscissa — /æbˈsɪsə/ (say ab sisuh) noun (plural abscissas or abscissae /æbˈsɪsi/ (say ab sisee)) (in plane Cartesian coordinates) the x coordinate of a point, i.e., its horizontal distance from the y axis measured parallel to the x axis. {Latin (linea)… …   Australian English dictionary

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