Used attributively before nouns; does not form comparative or superlative degrees.
Definitions
centerlinenoun
A painted or otherwise marked line that separates opposing lanes of traffic on a road, runway, or similar surface.
Drivers are prohibited from crossing the centerline unless it is safe to do so.
An imaginary or drawn reference line running through the geometric middle of an object, structure, or layout, used to indicate symmetry or provide a datum for measurement and alignment.
The mechanical drawing shows all dimensions taken from the centerline of the shaft.
centerlineadjective
Situated on, measured from, or relating to a centerline.
The engineers adjusted the centerline distance between the two gears.