ORDINATE By N., Sam M.S. - 15 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 Discrimination and Mental Illness in the LGBT Population Evaluation of a Quantitative Study ABSCISSA The Anatomy of Research and the Scientific Method AUDIOGRAM Y-AXIS ROD-AND-FRAME TEST (RFT) TILT AFTEREFFECT (TAE) Evaluation of a Qualitative Study SCREE PLOT Cite this page: N., Sam M.S., "ORDINATE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/ordinate/ (accessed February 7, 2023).