a point at or near the middle of, or equidistant from, both ends, as of a line

the midpoint of a boundary.

a point in time halfway between the beginning and the end, as of a process, event, or situation

the midpoint of the negotiations.

Geometry . the point on a line segment or an arc that is equidistant, when measured along the line or the arc, from both endpoints.

Statistics . median ( def. 5 ) .

Astrology . the point on the arc that is equidistant from two planets

regarded as a sensitive point and used in horoscopic interpretations.

noun

median , middle , midst