late 14c., "act of presenting," from Old French presentacion (13c.), from Latin praesentationem (nominative praesentatio) "a placing before," noun of action from past participle stem of praesentare (see present (v.)). Meaning "that which is offered or presented" is mid-15c.; that of "a theatrical or other representation" is recorded from c.1600. Related: Presentational.
presentation pres·en·ta·tion (prěz'ən-tā'shən, prē'zən-)
n.
The act of presenting.
The position of the fetus in the uterus at the beginning of labor, described in terms of the part that emerges or is felt first.
The part of the fetal body in advance during birth.
in childbirth, the position of the fetus at the time of delivery. The presenting part is the part of the fetus that can be touched by the obstetrician when he probes with his finger through the opening in the cervix, the outermost portion of the uterus, which projects into the vagina. In nearly all deliveries the presenting part is the vertex, the top of the head; in 3 or 4 percent of deliveries, it is the breech (buttocks). Face presentation and transverse (cross) presentation are rare