Learn how to say Tangencies correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tangent:
1a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
2a completely different line of thought or action:
Loretta’s mind went off at a tangent
3 Mathematics the trigonometric function that is equal to the ratio of the sides (other than the hypotenuse) opposite and adjacent to an angle in a right-angled triangle.
(of a line or plane) touching, but not intersecting, a curve or curved surface:
this curve is tangent to the average cost curve
late 16th century (in tangent (sense 3 of the noun) and as an adjective): from Latin tangent- ‘touching’, from the verb tangere