[1] : The Collaborative International Dictionary of English v.0.48

tangency \tan"gency\, n.
   the quality or state of being tangent; a contact or touching.
   1913 webster

[2] : WordNet (r) 2.0

tangency
     n 1: the state of being tangent; having contact at a single point
          or along a line without crossing
     2: electronics a junction where things as two electrical
        conductors touch or are in physical contact; "they forget
        to solder the contacts" syn: contact
see also:
contact 

Tangency >> T Words
Tangency, definition of term: Tangency
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