Tangent

Tan"gent

, a. [L. tangens, -entis, p. pr.] Touching; touching at a single point; specifically (Geom.) meeting a curve or surface at a point and having at that point the same direction as the curve or surface; -- said of a straight line, curve, or surface; as, a line tangent to a curve; a curve tangent to a surface; tangent surfaces.
[1913 Webster]

Tangent plane (Geom.), a plane which touches a surface in a point or line. -- Tangent scale (Gun.), a kind of breech sight for a cannon. -- Tangent screw (Mach.), an endless screw; a worm.
[1913 Webster]


[1913 Webster]

 

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Sat 15th December 2018