Definition of abscissa noun from the Oxford Advanced Learner's Dictionary



BrE BrE//æbˈsɪsə//
; NAmE NAmE//æbˈsɪsə//
(pl. abscissae
BrE BrE//æbˈsɪsiː//
; NAmE NAmE//æbˈsɪsiː//
, abscissas)
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the coordinate that gives the distance along the horizontal axis 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’.
See the Oxford Advanced American Dictionary entry: abscissa