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Webster 1913 Edition

Contact

Con′tact

(kŏn′tăkt)
,
Noun.
[L.
contactus
, fr.
contingere
,
-tactum
, to touch on all sides. See
Contingent
.]
1.
A close union or junction of bodies; a touching or meeting.
2.
(Geom.)
The property of two curves, or surfaces, which meet, and at the point of meeting have a common direction.
3.
(Mining)
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.

Webster 1828 Edition

Contact

CONTACT

,
Noun.
[L., to touch. See Touch.] A touching; touch; close union or juncture of bodies. Two bodies come in contact, when they meet without any sensible intervening space; the parts that touch are called the points of contact.

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