subtangent

American  

[suhb-tan-juhnt] / sʌbˈtæn dʒənt /

noun

Geometry.

1. the part of the x-axis cut off between the ordinate of a given point of a curve and the tangent at that point.

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subtangent British  

/ sʌbˈtændʒənt /

noun

1. geometry a segment of the x -axis lying between the x -coordinate of the point at which a tangent is drawn to a curve and the intercept of the tangent with the axis

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Etymology

Origin of subtangent

First recorded in 1705–15; sub- + tangent