01 n. A close union or junction of bodies; a touching or meeting.
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1.
A close union or junction of bodies; a touching or meeting.
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2.
The property of two curves, or surfaces, which meet, and at the point of meeting have a common direction.(Geom.)
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3.
The plane between two adjacent bodies of dissimilar rock.(Mining)
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4.
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.(Electricity)
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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.
Phrases & compounds
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.