tangent plane

noun

1. tangent ( def 4 ).

Example Sentences

To the line joining the centres of the two pencils as a line in one corresponds in the other the tangent plane at its centre.

From Project Gutenberg

Every plane which cuts a quadric surface in a line-pair is a tangent plane.

From Project Gutenberg

If it lies at the infinity, the plane at infinity is a tangent plane, and the surface is called a paraboloid.

From Project Gutenberg

An osculating plane of the curve (see 38 below) is a tangent plane of the torse all along a generating line.

From Project Gutenberg

This means of course that the spiral has been cut by a plane parallel to the tangent plane.

From Project Gutenberg