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1 definition found
 for Contact level
From The Collaborative International Dictionary of English v.0.48 :

  Contact \Con"tact\ (k[o^]n"t[a^]kt), n. [L. contactus, fr.
     contingere, -tactum, to touch on all sides. See
     Contingent.]
     1. A close union or junction of bodies; a touching or
        meeting.
        [1913 Webster]
  
     2. (Geom.) The property of two curves, or surfaces, which
        meet, and at the point of meeting have a common direction.
        [1913 Webster]
  
     3. (Mining) The plane between two adjacent bodies of
        dissimilar rock. --Raymond.
        [1913 Webster]
  
     4. (Electricity) A metallic conducting component of an
        electrical device connected to a circuit within and so
        situated that it may form a conducting pathway to an
        external power source or device when contacted by another
        conductor; as, the contact on a standard light bulb has
        the shape of a screw for easy insertion into the socket.
        [PJC]
  
     5. A person who serves to commmunicate information to or from
        one group to another, whether formally or informally; as,
        a good Washington reporter has contacts in the White
        House.
        [PJC]
  
     Contact level, a delicate level so pivoted as to tilt when
        two parts of a measuring apparatus come into contact with
        each other; -- used in precise determinations of lengths
        and in the accurate graduation of instruments.
        [1913 Webster]

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