centerline

or cen·ter line

[ sen-ter-lahyn ]

noun

1. any line that bisects a plane figure:

   the centerline of a building plan.

2. a line along the center of a road or highway dividing it into separate sections for traffic moving in opposite directions.
3. Radio. the perpendicular bisector of the line connecting two radio transmitters.

Word History and Origins

Origin of centerline¹

First recorded in 1800–10; center + line ¹

Example Sentences

In a post, State Patrol spokesperson Rick Johnson wrote that a driver was going east when they crossed the centerline and struck two other vehicles.

From Seattle Times

The crash happened early on May 18 when a pickup crossed the centerline on U.S.

From Seattle Times

An eastbound pickup crossed the centerline about 5:30 a.m.

From Seattle Times

One artist painted a neon orange line across town — and through his own studio — to mark the centerline of the moon’s shadow.

From New York Times

The captain was able to keep the airplane near the centerline of the runway, and 30 seconds after touchdown, the pedals began to operate normally.

From Seattle Times