CONTACT

n.

3 definitions — Webster’s Dictionary (1828)


1.
n.

A close union or junction of bodies; a touching or meeting.

2.
n.

The property of two curves, or surfaces, which meet, and at the point of meeting have a common direction.

3.
n.

The plane between two adjacent bodies of dissimilar rock. Raymond. 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.