Definition of centerline in English:


Syllabification: cen·ter·line
Pronunciation: /ˈsentərˌlīn
(also center line)


  • 1A real or imaginary line through the center of something, especially one following an axis of symmetry.
    More example sentences
    • The central line represents the vertical centre line of the body, and also the progression of the movement.
    • To minimize steric hindrance, each residue was rotated around an individual axis directed along the local center line of the helix.
    • For this reason, the axis on the left shows negative numbers above the center line and positive numbers below.
  • 1.1A painted line running down the middle of a road, dividing traffic traveling in opposite directions.
    More example sentences
    • The flagger was standing under portable floodlights in the opposing traffic lane close to the centerline, facing oncoming traffic.
    • The recently painted runway centerline was smooth and wet from rain, which had created a near-frictionless surface.
    • Barclay leaped out of his way, across the centerline and directly into the path of the semi.

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a slit made by cutting with a saw