labor curve

par·to·gram

(par'tō-gram), Graph of labor parameters of time and dilation with alert and action lines to prompt intervention if the curve deviates from expected. Synonym(s): Friedman curve, labor curve [L. partus, childbirth, + -gram]

la·bor curve

(lā'bŏr kŭrv) Synonym(s): partogram, labour curve.