ORDINATE By N., Pam M.S. - April 7, 2013 noun. the vertical O in a data plot or graph- that being, the y-axis. ORDINATE: "The ordinate is vital to compare the y-axis with it." Related Psychology Terms Y-AXIS ABSCISSA X-AXIS CUMULATIVE FREQUENCY DISTRIBUTION AUDIOGRAM PROFILE BARBER'S-POLE EFFECT SMOOTHING BAR GRAPH BIPLOT Cite this page: N., Pam M.S., "ORDINATE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/ordinate/ (accessed June 24, 2021).