midpoint

[ mid-point ]

/ ˈmɪdˌpɔɪnt /

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 3).

Astrology. the point on the arc that is equidistant from two planets: regarded as a sensitive point and used in horoscopic interpretations.

Origin of midpoint

1325–75; Middle English. See mid-, point

But the broader the base at the midpoint, the more stable the ride—no matter how many pile on at the extremes.

A Centrist Gets Fighting Mad |Mark McKinnon |October 13, 2010 |DAILY BEAST
He and the Sons of the Falcon had reached the midpoint of the valley.

The Saracen: The Holy War |Robert Shea
Approximately right here, I would say the midpoint of this building.

Warren Commission (2 of 26): Hearings Vol. II (of 15) |The President's Commission on the Assassination of President Kennedy
Slightly less than a third of the distance to the midpoint, in over half the time.

Out Around Rigel |Robert H. Wilson

The midpoint of this band is measured at the terminal border as the dominant frequency.

Middle American Frogs of the Hyla microcephala Group |William E. Duellman
As they reached the midpoint of the third room, the dining hall, one of the beings staggered through the door behind them.

The Enormous Room |Horace Leonard Gold

midpoint

/ (ˈmɪdˌpɔɪnt) /

the point on a line that is at an equal distance from either end

a point in time halfway between the beginning and end of an event