abscissa

noun

/æbˈsɪsə/

(plural abscissae

/æbˈsɪsiː/

, abscissas)

(mathematics数学)

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the coordinate that gives the distance along the horizontal axis (= the one along the bottom)横坐标 compare ordinate
Word Originearly 17th cent. (denoting the part of a line between a point on it and the point where it meets an ordinate): from modern Latin abscissa (linea) ‘cut-off (line)’, feminine past participle of abscindere, from ab- ‘off’ + scindere ‘to cut’.